{"id":4177,"date":"2025-06-06T14:20:27","date_gmt":"2025-06-06T14:20:27","guid":{"rendered":"https:\/\/diznr.com\/?p=4177"},"modified":"2025-06-06T14:20:27","modified_gmt":"2025-06-06T14:20:27","slug":"mathematics-short-tricks-math-ratio-proportion-and","status":"publish","type":"post","link":"https:\/\/www.reilsolar.com\/pdf\/mathematics-short-tricks-math-ratio-proportion-and\/","title":{"rendered":"Mathematics Short Tricks\/ MATH RATIO AND PROPORTION"},"content":{"rendered":"<p>Mathematics Short Tricks\/ MATH RATIO AND PROPORTION<\/p>\n<p>[fvplayer id=&#8221;643&#8243;]<\/p>\n<h3 data-start=\"0\" data-end=\"59\"><strong data-start=\"2\" data-end=\"57\">\u00a0Mathematics Short Tricks \u2013 Ratio &amp; Proportion<\/strong><\/h3>\n<p data-start=\"61\" data-end=\"252\">Ratio and Proportion are essential topics for competitive exams like <strong data-start=\"130\" data-end=\"163\">SSC, Banking, GATE, CAT, etc.<\/strong> Here are some <strong data-start=\"178\" data-end=\"205\">quick tricks &amp; formulas<\/strong> to solve ratio and proportion problems FAST!<\/p>\n<h3 data-start=\"259\" data-end=\"289\"><strong data-start=\"262\" data-end=\"287\">\u00a0What is Ratio?<\/strong><\/h3>\n<p data-start=\"290\" data-end=\"346\">A <strong data-start=\"292\" data-end=\"301\">ratio<\/strong> compares two quantities and is written as:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">Ratio=a:b\\text{Ratio} = a:b<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Ratio<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"374\" data-end=\"467\"><strong data-start=\"377\" data-end=\"389\">Example:<\/strong> If a class has <strong data-start=\"405\" data-end=\"416\">20 boys<\/strong> and <strong data-start=\"421\" data-end=\"433\">30 girls<\/strong>, the ratio of boys to girls is:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">20:30=2:320:30 = 2:3<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">20<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">30<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">3<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"488\" data-end=\"556\">\u00a0Always simplify ratios by dividing by the <strong data-start=\"532\" data-end=\"539\">HCF<\/strong> of both terms.<\/p>\n<h3 data-start=\"563\" data-end=\"598\"><strong data-start=\"566\" data-end=\"596\">\u00a0What is Proportion?<\/strong><\/h3>\n<p data-start=\"599\" data-end=\"651\">A proportion states that <strong data-start=\"624\" data-end=\"648\">two ratios are equal<\/strong>:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">a:b=c:da:b = c:d<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">c<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"670\" data-end=\"736\">Here, <strong data-start=\"676\" data-end=\"700\">b &amp; c are mean terms<\/strong>, and <strong data-start=\"706\" data-end=\"733\">a &amp; d are extreme terms<\/strong>.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">Product\u00a0of\u00a0Means=Product\u00a0of\u00a0Extremes\\text{Product of Means} = \\text{Product of Extremes}<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Product\u00a0of\u00a0Means<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Product\u00a0of\u00a0Extremes<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"798\" data-end=\"846\"><strong data-start=\"801\" data-end=\"813\">Example:<\/strong> Find <strong data-start=\"819\" data-end=\"824\">x<\/strong> if <span class=\"katex\"><span class=\"katex-mathml\">2:5=6:x2:5 = 6:x<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">6<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span>.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">2\u00d7x=5\u00d762 \\times x = 5 \\times 6<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">2<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">6<\/span><\/span><\/span><\/span><\/span> <span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x=302=15x = \\frac{30}{2} = 15<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">230<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">15<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"909\" data-end=\"943\"><strong data-start=\"911\" data-end=\"928\">Final Answer:<\/strong> <span class=\"katex\"><span class=\"katex-mathml\">x=15x = 15<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">15<\/span><\/span><\/span><\/span><\/p>\n<h3 data-start=\"950\" data-end=\"996\"><strong data-start=\"953\" data-end=\"994\">\u00a0Trick to Solve Problems Faster<\/strong><\/h3>\n<h3 data-start=\"998\" data-end=\"1037\"><strong data-start=\"1002\" data-end=\"1035\">\u00a0Ratio Multiplication Trick<\/strong><\/h3>\n<p data-start=\"1038\" data-end=\"1064\">If two ratios are given:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">a:bandc:da:b \\quad \\text{and} \\quad c:d<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><span class=\"mord text\"><span class=\"mord\">and<\/span><\/span><span class=\"mord mathnormal\">c<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"1104\" data-end=\"1142\">To combine them into a single ratio:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">(a\u00d7c):(b\u00d7d)(a \\times c) : (b \\times d)<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">c<\/span><span class=\"mclose\">)<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">b<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"1179\" data-end=\"1244\"><strong data-start=\"1182\" data-end=\"1194\">Example:<\/strong> Find the combined ratio of <strong data-start=\"1222\" data-end=\"1229\">2:3<\/strong> and <strong data-start=\"1234\" data-end=\"1241\">4:5<\/strong>.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">(2\u00d74):(3\u00d75)=8:15(2 \\times 4) : (3 \\times 5) = 8:15<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">2<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mclose\">)<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">3<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mclose\">)<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">15<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"1288\" data-end=\"1320\"><strong data-start=\"1290\" data-end=\"1307\">Final Answer:<\/strong> <span class=\"katex\"><span class=\"katex-mathml\">8:158:15<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">15<\/span><\/span><\/span><\/span><\/p>\n<h3 data-start=\"1327\" data-end=\"1381\"><strong data-start=\"1331\" data-end=\"1379\">\u00a0Trick for Finding a Number Based on Ratio<\/strong><\/h3>\n<p data-start=\"1382\" data-end=\"1407\">If <strong data-start=\"1385\" data-end=\"1398\">x:y = m:n<\/strong>, then:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x=mm+n\u00d7Totalx = \\frac{m}{m+n} \\times \\text{Total}<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"mord mathnormal\">m<\/span><span class=\"mbin\">+<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mord mathnormal\">m<\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Total<\/span><\/span><\/span><\/span><\/span><\/span> <span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">y=nm+n\u00d7Totaly = \\frac{n}{m+n} \\times \\text{Total}<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">y<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"mord mathnormal\">m<\/span><span class=\"mbin\">+<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mord mathnormal\">n<\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Total<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"1501\" data-end=\"1618\"><strong data-start=\"1504\" data-end=\"1516\">Example:<\/strong> The ratio of <strong data-start=\"1530\" data-end=\"1557\">A&#8217;s &amp; B\u2019s salary is 2:3<\/strong>, and their total salary is \u20b95000. Find A&#8217;s and B&#8217;s salary.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">A=22+3\u00d75000=25\u00d75000=2000A = \\frac{2}{2+3} \\times 5000 = \\frac{2}{5} \\times 5000 = 2000<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">2<span class=\"mbin\">+<\/span>32<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">5000<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">52<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">5000<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">2000<\/span><\/span><\/span><\/span><\/span> <span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">B=35\u00d75000=3000B = \\frac{3}{5} \\times 5000 = 3000<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">B<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">53<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">5000<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">3000<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"1734\" data-end=\"1776\"><strong data-start=\"1736\" data-end=\"1753\">Final Answer:<\/strong> A = \u20b92000, B = \u20b93000<\/p>\n<h3 data-start=\"1783\" data-end=\"1840\"><strong data-start=\"1786\" data-end=\"1838\">\u00a0How to Divide an Amount in a Given Ratio?<\/strong><\/h3>\n<p data-start=\"1841\" data-end=\"1888\">To divide <strong data-start=\"1851\" data-end=\"1857\">\u20b9X<\/strong> in the ratio <span class=\"katex\"><span class=\"katex-mathml\">a:ba:b<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span>, use:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">First\u00a0part=aa+b\u00d7X\\text{First part} = \\frac{a}{a+b} \\times X<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">First\u00a0part<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">+<\/span><span class=\"mord mathnormal\">b<\/span><span class=\"mord mathnormal\">a<\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">X<\/span><\/span><\/span><\/span><\/span> <span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">Second\u00a0part=ba+b\u00d7X\\text{Second part} = \\frac{b}{a+b} \\times X<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Second\u00a0part<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">+<\/span><span class=\"mord mathnormal\">b<\/span><span class=\"mord mathnormal\">b<\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">X<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"1993\" data-end=\"2045\"><strong data-start=\"1996\" data-end=\"2008\">Example:<\/strong> \u20b91000 is divided in the ratio 3:2.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">First\u00a0part=33+2\u00d71000=35\u00d71000=600\\text{First part} = \\frac{3}{3+2} \\times 1000 = \\frac{3}{5} \\times 1000 = 600<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">First\u00a0part<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">3<span class=\"mbin\">+<\/span>23<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">1000<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">53<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">1000<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">600<\/span><\/span><\/span><\/span><\/span> <span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">Second\u00a0part=25\u00d71000=400\\text{Second part} = \\frac{2}{5} \\times 1000 = 400<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">Second\u00a0part<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">52<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">1000<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">400<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"2191\" data-end=\"2226\"><strong data-start=\"2193\" data-end=\"2210\">Final Answer:<\/strong> \u20b9600 and \u20b9400<\/p>\n<h3 data-start=\"2233\" data-end=\"2297\"><strong data-start=\"2236\" data-end=\"2295\">\u00a0Finding the New Ratio After an Increase\/Decrease<\/strong><\/h3>\n<p data-start=\"2298\" data-end=\"2377\">If two quantities are <strong data-start=\"2320\" data-end=\"2356\">increased\/decreased by x% and y%<\/strong>, the new ratio is:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">New\u00a0Ratio=(a\u00d7(100+x)):(b\u00d7(100+y))\\text{New Ratio} = (a \\times (100 + x)) : (b \\times (100 + y))<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">New\u00a0Ratio<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">100<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mclose\">))<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">b<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">100<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">y<\/span><span class=\"mclose\">))<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"2450\" data-end=\"2573\"><strong data-start=\"2453\" data-end=\"2465\">Example:<\/strong> The ratio of A\u2019s and B\u2019s salary is 4:5. If both are increased by <strong data-start=\"2531\" data-end=\"2538\">20%<\/strong> and <strong data-start=\"2543\" data-end=\"2550\">10%<\/strong>, find the new ratio.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">New\u00a0Ratio=(4\u00d7120):(5\u00d7110)=480:550\\text{New Ratio} = (4 \\times 120) : (5 \\times 110) = 480 : 550<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">New\u00a0Ratio<\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">4<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">120<\/span><span class=\"mclose\">)<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">5<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">110<\/span><span class=\"mclose\">)<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">480<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">550<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"2646\" data-end=\"2657\">Simplify:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">24:27.524: 27.5<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">24<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">27.5<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"2675\" data-end=\"2714\">Multiply by <strong data-start=\"2687\" data-end=\"2692\">2<\/strong> to remove decimals:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">48:5548:55<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">48<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">55<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"2729\" data-end=\"2760\"><strong data-start=\"2731\" data-end=\"2748\">Final Answer:<\/strong> <strong data-start=\"2749\" data-end=\"2758\">48:55<\/strong><\/p>\n<h3 data-start=\"2767\" data-end=\"2817\"><strong data-start=\"2770\" data-end=\"2815\">\u00a0Quickest Way to Compare Two Ratios<\/strong><\/h3>\n<p data-start=\"2818\" data-end=\"3003\">To compare <span class=\"katex\"><span class=\"katex-mathml\">a:ba:b<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span> and <span class=\"katex\"><span class=\"katex-mathml\">c:dc:d<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">c<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><\/span><\/span><\/span>, <strong data-start=\"2854\" data-end=\"2872\">cross multiply<\/strong>:<br data-start=\"2873\" data-end=\"2876\" \/>\u00a0If <span class=\"katex\"><span class=\"katex-mathml\">a\u00d7d&gt;b\u00d7ca \\times d &gt; b \\times c<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><span class=\"mrel\">&gt;<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">c<\/span><\/span><\/span><\/span> \u2192 <span class=\"katex\"><span class=\"katex-mathml\">a:ba:b<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span> is <strong data-start=\"2926\" data-end=\"2937\">greater<\/strong><br data-start=\"2937\" data-end=\"2940\" \/>\u00a0If <span class=\"katex\"><span class=\"katex-mathml\">a\u00d7d&lt;b\u00d7ca \\times d &lt; b \\times c<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><span class=\"mrel\">&lt;<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">b<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">c<\/span><\/span><\/span><\/span> \u2192 <span class=\"katex\"><span class=\"katex-mathml\">c:dc:d<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">c<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">d<\/span><\/span><\/span><\/span> is <strong data-start=\"2990\" data-end=\"3001\">greater<\/strong><\/p>\n<p data-start=\"3005\" data-end=\"3052\"><strong data-start=\"3008\" data-end=\"3020\">Example:<\/strong> Which is greater: 3:4 or 5:7?<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">3\u00d77=21,4\u00d75=203 \\times 7 = 21, \\quad 4 \\times 5 = 20<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">3<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">7<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">21<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">4<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">20<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3100\" data-end=\"3153\">Since <strong data-start=\"3106\" data-end=\"3117\">21 &gt; 20<\/strong>, <strong data-start=\"3119\" data-end=\"3137\">3:4 is greater<\/strong> than <strong data-start=\"3143\" data-end=\"3150\">5:7<\/strong>.<\/p>\n<h3 data-start=\"3160\" data-end=\"3199\"><strong data-start=\"3163\" data-end=\"3197\">\u00a0Mean Proportion Formula<\/strong><\/h3>\n<p data-start=\"3200\" data-end=\"3249\">The mean proportion between <strong data-start=\"3228\" data-end=\"3233\">a<\/strong> and <strong data-start=\"3238\" data-end=\"3243\">b<\/strong> is:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x=a\u00d7bx = \\sqrt{a \\times b}<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord sqrt\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"svg-align\"><span class=\"mord\"><span class=\"mord mathnormal\">a<\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3281\" data-end=\"3336\"><strong data-start=\"3284\" data-end=\"3296\">Example:<\/strong> Find the mean proportion of 4 and 25.<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x=4\u00d725=100=10x = \\sqrt{4 \\times 25} = \\sqrt{100} = 10<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord sqrt\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"svg-align\"><span class=\"mord\">4<span class=\"mbin\">\u00d7<\/span>25<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord sqrt\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"svg-align\"><span class=\"mord\">100<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">10<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3386\" data-end=\"3414\"><strong data-start=\"3388\" data-end=\"3405\">Final Answer:<\/strong> <strong data-start=\"3406\" data-end=\"3412\">10<\/strong><\/p>\n<h3 data-start=\"3421\" data-end=\"3464\"><strong data-start=\"3424\" data-end=\"3462\">\u00a0Direct &amp; Inverse Proportion<\/strong><\/h3>\n<h3 data-start=\"3465\" data-end=\"3522\"><strong data-start=\"3469\" data-end=\"3520\">\u00a0Direct Proportion (More \u2192 More, Less \u2192 Less)<\/strong><\/h3>\n<p data-start=\"3523\" data-end=\"3568\">If <strong data-start=\"3526\" data-end=\"3559\">x increases, y also increases<\/strong>, then:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x1:y1=x2:y2x_1:y_1 = x_2:y_2<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">x<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">y<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">x<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">y<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3595\" data-end=\"3675\"><strong data-start=\"3597\" data-end=\"3609\">Example:<\/strong> If 5 workers do a job in 10 days, how many days for 10 workers?<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">5:10=10:x5:10 = 10:x<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord\">10<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">10<\/span><span class=\"mrel\">:<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3696\" data-end=\"3713\">Cross multiply:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">5x=10\u00d710\u21d2x=55x = 10 \\times 10 \\Rightarrow x = 5<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">10<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">10<\/span><span class=\"mrel\">\u21d2<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3758\" data-end=\"3790\"><strong data-start=\"3760\" data-end=\"3777\">Final Answer:<\/strong> <strong data-start=\"3778\" data-end=\"3788\">5 days<\/strong><\/p>\n<h3 data-start=\"3792\" data-end=\"3850\"><strong data-start=\"3796\" data-end=\"3848\">\u00a0Inverse Proportion (More \u2192 Less, Less \u2192 More)<\/strong><\/h3>\n<p data-start=\"3851\" data-end=\"3891\">If <strong data-start=\"3854\" data-end=\"3882\">x increases, y decreases<\/strong>, then:<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x1\u00d7y1=x2\u00d7y2x_1 \\times y_1 = x_2 \\times y_2<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">x<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">y<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">x<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">y<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3932\" data-end=\"4008\"><strong data-start=\"3934\" data-end=\"3946\">Example:<\/strong> If 8 men finish work in 12 days, how long will 16 men take?<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">8\u00d712=16\u00d7x8 \\times 12 = 16 \\times x<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">8<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord\">12<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">16<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span> <span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">x=8\u00d71216=6\u00a0daysx = \\frac{8 \\times 12}{16} = 6 \\text{ days}<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\"><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\">168<span class=\"mbin\">\u00d7<\/span>12<\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">6<\/span><span class=\"mord text\"><span class=\"mord\">\u00a0days<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"4095\" data-end=\"4127\"><strong data-start=\"4097\" data-end=\"4114\">Final Answer:<\/strong> <strong data-start=\"4115\" data-end=\"4125\">6 days<\/strong><\/p>\n<h3 data-start=\"4134\" data-end=\"4165\"><strong data-start=\"4138\" data-end=\"4165\">\u00a0Summary of Tricks\u00a0<\/strong><\/h3>\n<p data-start=\"4166\" data-end=\"4409\">\u00a0Memorize <strong data-start=\"4177\" data-end=\"4201\">basic ratio concepts<\/strong><br data-start=\"4201\" data-end=\"4204\" \/>\u00a0Use <strong data-start=\"4210\" data-end=\"4234\">cross multiplication<\/strong> to compare ratios<br data-start=\"4252\" data-end=\"4255\" \/>\u00a0Apply <strong data-start=\"4263\" data-end=\"4300\">direct &amp; inverse proportion rules<\/strong><br data-start=\"4300\" data-end=\"4303\" \/>\u00a0Use <strong data-start=\"4309\" data-end=\"4354\">proportion formula for quick calculations<\/strong><br data-start=\"4354\" data-end=\"4357\" \/>\u00a0Use <strong data-start=\"4363\" data-end=\"4388\">multiplication tricks<\/strong> to find new ratios<\/p>\n<p data-start=\"4411\" data-end=\"4493\"><strong data-start=\"4414\" data-end=\"4491\">Master these tricks and solve any Ratio &amp; Proportion question in seconds!<\/strong><\/p>\n<p data-start=\"4495\" data-end=\"4557\" data-is-last-node=\"\" data-is-only-node=\"\">Would you like <strong data-start=\"4510\" data-end=\"4554\">practice questions or PDFs for revision?<\/strong><\/p>\n<h3 data-start=\"4495\" data-end=\"4557\"><a href=\"https:\/\/www.careerride.com\/Tips-tricks-and-formulae-on-Ratio-and-Proportion.pdf\" target=\"_blank\" rel=\"noopener\">Mathematics Short Tricks\/ MATH RATIO AND PROPORTION<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/blogmedia.testbook.com\/blog\/wp-content\/uploads\/2021\/12\/maths-ratio-and-proportion-74674c04.pdf\" target=\"_blank\" rel=\"noopener\">Ratio and Proportion: Concepts, Solved Examples, &amp; &#8230;<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/www.jaipuria.ac.in\/blog\/wp-content\/uploads\/2023\/07\/Quant-Short-Tricks-PDF.pdf\" target=\"_blank\" rel=\"noopener\">QUALITATIVE APTITUDE TRICKS &amp; SHORTCUTS FOR<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/ncert.nic.in\/pdf\/publication\/exemplarproblem\/classVI\/Mathematics\/feep108.pdf\" target=\"_blank\" rel=\"noopener\">RATIO AND PROPORTION.pmd<\/a><\/h3>\n<p>Certainly! Mastering <strong>Ratio and Proportion<\/strong> is crucial for excelling in competitive exams like GATE, SSC, Banking, and others. Below are some effective tricks and shortcuts to enhance your problem-solving speed and accuracy.<\/p>\n<hr \/>\n<h3>\ud83d\udcd8 <strong>Key Concepts<\/strong><\/h3>\n<ul>\n<li><strong>Ratio<\/strong>: A comparison between two quantities, expressed as <code>a : b<\/code>.<\/li>\n<li><strong>Proportion<\/strong>: An equation stating that two ratios are equal, denoted as <code>a : b :: c : d<\/code>.(GeeksforGeeks, BYJU&#8217;S)<\/li>\n<\/ul>\n<hr \/>\n<h3>\u26a1 <strong>Essential Tricks and Shortcuts<\/strong><\/h3>\n<ol>\n<li><strong>Mean Proportion<\/strong>:\n<ul>\n<li>If <code>a : x = x : b<\/code>, then <code>x = \u221a(a \u00d7 b)<\/code>.<\/li>\n<li><em>Example<\/em>: Find the mean proportion between 4 and 9.\n<ul>\n<li><code>x = \u221a(4 \u00d7 9) = \u221a36 = 6<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Third Proportion<\/strong>:\n<ul>\n<li>If <code>a : b = b : c<\/code>, then <code>c = b\u00b2 \/ a<\/code>.<\/li>\n<li><em>Example<\/em>: Find the third proportion to 4 and 8.\n<ul>\n<li><code>c = 8\u00b2 \/ 4 = 64 \/ 4 = 16<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Fourth Proportion<\/strong>:\n<ul>\n<li>If <code>a : b = c : d<\/code>, then <code>d = (b \u00d7 c) \/ a<\/code>.<\/li>\n<li><em>Example<\/em>: Find the fourth proportion to 3, 9, and 12.\n<ul>\n<li><code>d = (9 \u00d7 12) \/ 3 = 108 \/ 3 = 36<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Componendo and Dividendo Rule<\/strong>:\n<ul>\n<li>If <code>a \/ b = c \/ d<\/code>, then:\n<ul>\n<li><code>(a + b) \/ (a - b) = (c + d) \/ (c - d)<\/code><\/li>\n<\/ul>\n<\/li>\n<li><em>Example<\/em>: If <code>a \/ b = 3 \/ 5<\/code>, then:\n<ul>\n<li><code>(a + b) \/ (a - b) = (3 + 5) \/ (3 - 5) = 8 \/ (-2) = -4<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Dividing a Quantity in a Given Ratio<\/strong>:\n<ul>\n<li>To divide amount <code>A<\/code> in the ratio <code>m : n<\/code>:\n<ul>\n<li>First part = <code>(A \u00d7 m) \/ (m + n)<\/code><\/li>\n<li>Second part = <code>(A \u00d7 n) \/ (m + n)<\/code><\/li>\n<\/ul>\n<\/li>\n<li><em>Example<\/em>: Divide 1800 in the ratio 2:3.\n<ul>\n<li>First part = <code>(1800 \u00d7 2) \/ (2 + 3) = 3600 \/ 5 = 720<\/code><\/li>\n<li>Second part = <code>1800 - 720 = 1080<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Comparison of Ratios<\/strong>:\n<ul>\n<li>To compare <code>a : b<\/code> and <code>c : d<\/code>, convert both to fractions:\n<ul>\n<li><code>a \/ b<\/code> and <code>c \/ d<\/code><\/li>\n<\/ul>\n<\/li>\n<li>Compare the decimal values.<\/li>\n<li><em>Example<\/em>: Compare 3:4 and 5:7.\n<ul>\n<li><code>3\/4 = 0.75<\/code>, <code>5\/7 \u2248 0.714<\/code><\/li>\n<li>Since 0.75 &gt; 0.714, 3:4 &gt; 5:7<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Compound Ratio<\/strong>:\n<ul>\n<li>The compound ratio of <code>a : b<\/code> and <code>c : d<\/code> is <code>(a \u00d7 c) : (b \u00d7 d)<\/code>.<\/li>\n<li><em>Example<\/em>: Find the compound ratio of 2:3 and 4:5.\n<ul>\n<li><code>(2 \u00d7 4) : (3 \u00d7 5) = 8 : 15<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Duplicate, Triplicate, and Sub-Duplicate Ratios<\/strong>:\n<ul>\n<li><strong>Duplicate Ratio<\/strong>: <code>(a\u00b2 : b\u00b2)<\/code><\/li>\n<li><strong>Triplicate Ratio<\/strong>: <code>(a\u00b3 : b\u00b3)<\/code><\/li>\n<li><strong>Sub-Duplicate Ratio<\/strong>: <code>(\u221aa : \u221ab)<\/code><\/li>\n<li><em>Example<\/em>: For 3:4:\n<ul>\n<li>Duplicate: <code>9:16<\/code><\/li>\n<li>Triplicate: <code>27:64<\/code><\/li>\n<li>Sub-Duplicate: <code>\u221a3:\u221a4 \u2248 1.732:2<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<h3>\ud83d\udcda <strong>Recommended Resources<\/strong><\/h3>\n<ul>\n<li><strong>Guidely<\/strong>: Offers a comprehensive PDF on ratio and proportion tricks tailored for bank exams. (CareerRide, GeeksforGeeks, Guidely)<\/li>\n<li><strong>GeeksforGeeks<\/strong>: Provides detailed explanations and examples on ratios and proportions. (Scribd)<\/li>\n<li><strong>BYJU&#8217;S<\/strong>: Covers definitions, formulas, and solved examples to strengthen your understanding.<\/li>\n<\/ul>\n<hr \/>\n<h3>\ud83c\udfa5 <strong>Video Tutorials<\/strong><\/h3>\n<p>For visual learners, the following video tutorials can be immensely helpful:<\/p>\n<p>Ratio and Proportion &#8211; Shortcuts &amp; Tricks for Placement Tests<\/p>\n<p>Ratio and Proportion &#8211; Shortcut Tricks to Solve<\/p>\n<p>Ratio and Proportion Word Problems &#8211; Math<\/p>\n<hr \/>\n<p>Feel free to reach out if you need further clarification or additional practice problems on any of these topics!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mathematics Short Tricks\/ MATH RATIO AND PROPORTION [fvplayer id=&#8221;643&#8243;] \u00a0Mathematics Short Tricks \u2013 Ratio &amp; Proportion Ratio and Proportion are essential topics for competitive exams like SSC, Banking, GATE, CAT, etc. Here are some quick tricks &amp; formulas to solve ratio and proportion problems FAST! \u00a0What is Ratio? A ratio compares two quantities and is [&hellip;]<\/p>\n","protected":false},"author":64,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[],"class_list":["post-4177","post","type-post","status-publish","format-standard","hentry","category-mathematics-short-tricks"],"_links":{"self":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/4177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/users\/64"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/comments?post=4177"}],"version-history":[{"count":0,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/4177\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/media?parent=4177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/categories?post=4177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/tags?post=4177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}