{"id":2940,"date":"2025-06-06T07:03:32","date_gmt":"2025-06-06T07:03:32","guid":{"rendered":"https:\/\/diznr.com\/?p=2940"},"modified":"2025-06-06T07:03:32","modified_gmt":"2025-06-06T07:03:32","slug":"statement-based-problem-on-proposition-gate-2021-discrete-consider-the-statements-following","status":"publish","type":"post","link":"https:\/\/www.reilsolar.com\/pdf\/statement-based-problem-on-proposition-gate-2021-discrete-consider-the-statements-following\/","title":{"rendered":". Statement based Problem on Proposition- GATE 2025  Discrete Consider the following statements"},"content":{"rendered":"<p>. Statement based Problem on Proposition- GATE 2025 Discrete Consider the following statements<\/p>\n<p>[fvplayer id=&#8221;180&#8243;]<\/p>\n<p data-start=\"0\" data-end=\"159\">\u0915\u0943\u092a\u092f\u093e \u092a\u0942\u0930\u093e \u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u093e\u091d\u093e \u0915\u0930\u0947\u0902 \u0924\u093e\u0915\u093f \u092e\u0948\u0902 <strong data-start=\"37\" data-end=\"71\">GATE 2025 Discrete Mathematics<\/strong> (Propositional Logic) \u0915\u0947 <strong data-start=\"97\" data-end=\"124\">Statement-based Problem<\/strong> \u0915\u094b \u0939\u0932 \u0915\u0930\u0928\u0947 \u092e\u0947\u0902 \u0906\u092a\u0915\u0940 \u092e\u0926\u0926 \u0915\u0930 \u0938\u0915\u0942\u0901\u0964<\/p>\n<p data-start=\"161\" data-end=\"364\" data-is-last-node=\"\" data-is-only-node=\"\">\u0905\u0917\u0930 \u092f\u0939 <strong data-start=\"168\" data-end=\"206\">\u0924\u093e\u0930\u094d\u0915\u093f\u0915 \u0915\u0925\u0928\u094b\u0902 (Logical Statements)<\/strong>, <strong data-start=\"208\" data-end=\"236\">\u0938\u0924\u094d\u092f \u0938\u093e\u0930\u0923\u0940 (Truth Table)<\/strong>, <strong data-start=\"238\" data-end=\"262\">\u092a\u0930\u093f\u0923\u093e\u092e (Implication)<\/strong> \u092f\u093e <strong data-start=\"266\" data-end=\"303\">\u0924\u093e\u0930\u094d\u0915\u093f\u0915 \u092a\u094d\u0930\u092e\u0947\u092f (Logical Theorems)<\/strong> \u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0939\u0948, \u0924\u094b \u092e\u0948\u0902 \u0935\u093f\u0938\u094d\u0924\u0943\u0924 \u0939\u0932 \u0914\u0930 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0926\u0947 \u0938\u0915\u0924\u093e \u0939\u0942\u0901\u0964<\/p>\n<h3 data-start=\"161\" data-end=\"364\"><a href=\"https:\/\/gate2025.iitr.ac.in\/doc\/download\/2024\/XHC624S3.pdf\" target=\"_blank\" rel=\"noopener\">. Statement based Problem on Proposition- GATE 2025 Discrete Consider the following statements<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/gate2025.iitr.ac.in\/doc\/download\/GATE2025_InformationBrochure.pdf\" target=\"_blank\" rel=\"noopener\">Information Brochure &#8211; GATE 2025 &#8211; IIT Roorkee<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/www2.cs.uh.edu\/~arjun\/courses\/ds\/DiscMaths4CompSc.pdf\" target=\"_blank\" rel=\"noopener\">Discrete Mathematics for Computer Science<\/a><\/h3>\n<p data-start=\"0\" data-end=\"253\">Here\u2019s a <strong data-start=\"9\" data-end=\"43\">sample Statement-based Problem<\/strong> on <strong data-start=\"47\" data-end=\"71\">Propositions (Logic)<\/strong> in <strong data-start=\"75\" data-end=\"99\">Discrete Mathematics<\/strong>, commonly seen in <strong data-start=\"118\" data-end=\"132\">GATE exams<\/strong> (like GATE 2025). These questions test your understanding of propositional logic, truth values, and logical equivalence.<\/p>\n<hr data-start=\"255\" data-end=\"258\" \/>\n<h3 data-start=\"260\" data-end=\"312\">\ud83e\udde0 <strong data-start=\"267\" data-end=\"312\">Sample GATE-Style Question on Proposition<\/strong><\/h3>\n<p data-start=\"314\" data-end=\"368\"><strong data-start=\"314\" data-end=\"327\">Question:<\/strong><br data-start=\"327\" data-end=\"330\" \/>Consider the following two statements:<\/p>\n<ul data-start=\"370\" data-end=\"453\">\n<li data-start=\"370\" data-end=\"419\">\n<p data-start=\"372\" data-end=\"419\"><strong data-start=\"372\" data-end=\"377\">P<\/strong>: If it rains, then the ground gets wet.<\/p>\n<\/li>\n<li data-start=\"420\" data-end=\"453\">\n<p data-start=\"422\" data-end=\"453\"><strong data-start=\"422\" data-end=\"427\">Q<\/strong>: The ground is not wet.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"455\" data-end=\"509\">Which of the following conclusions is logically valid?<\/p>\n<p data-start=\"511\" data-end=\"613\">A. It did not rain<br data-start=\"529\" data-end=\"532\" \/>B. It rained<br data-start=\"544\" data-end=\"547\" \/>C. It rained and the ground is dry<br data-start=\"581\" data-end=\"584\" \/>D. Nothing can be concluded<\/p>\n<hr data-start=\"615\" data-end=\"618\" \/>\n<h3 data-start=\"620\" data-end=\"639\">\u2705 <strong data-start=\"626\" data-end=\"639\">Solution:<\/strong><\/h3>\n<p data-start=\"641\" data-end=\"689\">Convert the statements into propositional logic:<\/p>\n<ul data-start=\"691\" data-end=\"755\">\n<li data-start=\"691\" data-end=\"717\">\n<p data-start=\"693\" data-end=\"717\">Let <strong data-start=\"697\" data-end=\"702\">R<\/strong> = &#8220;It rains&#8221;<\/p>\n<\/li>\n<li data-start=\"718\" data-end=\"755\">\n<p data-start=\"720\" data-end=\"755\">Let <strong data-start=\"724\" data-end=\"729\">W<\/strong> = &#8220;The ground gets wet&#8221;<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"757\" data-end=\"762\">So,<\/p>\n<ul data-start=\"763\" data-end=\"818\">\n<li data-start=\"763\" data-end=\"795\">\n<p data-start=\"765\" data-end=\"795\"><strong data-start=\"765\" data-end=\"770\">P<\/strong>: <span class=\"katex\"><span class=\"katex-mathml\">R\u2192WR \\rightarrow W<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">R<\/span><span class=\"mrel\">\u2192<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">W<\/span><\/span><\/span><\/span><\/p>\n<\/li>\n<li data-start=\"796\" data-end=\"818\">\n<p data-start=\"798\" data-end=\"818\"><strong data-start=\"798\" data-end=\"803\">Q<\/strong>: <span class=\"katex\"><span class=\"katex-mathml\">\u00acW\\lnot W<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u00ac<\/span><span class=\"mord mathnormal\">W<\/span><\/span><\/span><\/span><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"820\" data-end=\"864\">From <strong data-start=\"825\" data-end=\"830\">P<\/strong> and <strong data-start=\"835\" data-end=\"840\">Q<\/strong>, can we infer anything?<\/p>\n<p data-start=\"866\" data-end=\"877\">From logic:<\/p>\n<ul data-start=\"878\" data-end=\"985\">\n<li data-start=\"878\" data-end=\"985\">\n<p data-start=\"880\" data-end=\"985\"><span class=\"katex\"><span class=\"katex-mathml\">R\u2192WR \\rightarrow W<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">R<\/span><span class=\"mrel\">\u2192<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">W<\/span><\/span><\/span><\/span> and <span class=\"katex\"><span class=\"katex-mathml\">\u00acW\\lnot W<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u00ac<\/span><span class=\"mord mathnormal\">W<\/span><\/span><\/span><\/span><br data-start=\"919\" data-end=\"922\" \/>\u27f9 By <strong data-start=\"927\" data-end=\"950\">Contrapositive Rule<\/strong>, <span class=\"katex\"><span class=\"katex-mathml\">\u00acW\u2192\u00acR\\lnot W \\rightarrow \\lnot R<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u00ac<\/span><span class=\"mord mathnormal\">W<\/span><span class=\"mrel\">\u2192<\/span><\/span><span class=\"base\"><span class=\"mord\">\u00ac<\/span><span class=\"mord mathnormal\">R<\/span><\/span><\/span><\/span><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"987\" data-end=\"1013\">So, <span class=\"katex\"><span class=\"katex-mathml\">\u00acR\\lnot R<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">\u00ac<\/span><span class=\"mord mathnormal\">R<\/span><\/span><\/span><\/span> is true.<\/p>\n<hr data-start=\"1015\" data-end=\"1018\" \/>\n<h3 data-start=\"1020\" data-end=\"1065\">\ud83d\udfe9 <strong data-start=\"1027\" data-end=\"1065\">Correct Answer: A. It did not rain<\/strong><\/h3>\n<hr data-start=\"1067\" data-end=\"1070\" \/>\n<h3 data-start=\"1072\" data-end=\"1110\">\ud83d\udccc Tips for Solving These in GATE:<\/h3>\n<ul data-start=\"1111\" data-end=\"1283\">\n<li data-start=\"1111\" data-end=\"1161\">\n<p data-start=\"1113\" data-end=\"1161\">Convert English sentences to propositional logic<\/p>\n<\/li>\n<li data-start=\"1162\" data-end=\"1234\">\n<p data-start=\"1164\" data-end=\"1234\">Use rules like <strong data-start=\"1179\" data-end=\"1197\">contrapositive<\/strong>, <strong data-start=\"1199\" data-end=\"1215\">modus ponens<\/strong>, <strong data-start=\"1217\" data-end=\"1234\">modus tollens<\/strong><\/p>\n<\/li>\n<li data-start=\"1235\" data-end=\"1283\">\n<p data-start=\"1237\" data-end=\"1283\">Carefully identify assumptions vs. conclusions<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1285\" data-end=\"1288\" \/>\n<p data-start=\"1290\" data-end=\"1412\" data-is-last-node=\"\" data-is-only-node=\"\">Would you like more such GATE-style problems with explanations in <strong data-start=\"1356\" data-end=\"1365\">Hindi<\/strong>, or a <strong data-start=\"1372\" data-end=\"1389\">PDF worksheet<\/strong> of practice questions?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>. Statement based Problem on Proposition- GATE 2025 Discrete Consider the following statements [fvplayer id=&#8221;180&#8243;] \u0915\u0943\u092a\u092f\u093e \u092a\u0942\u0930\u093e \u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u093e\u091d\u093e \u0915\u0930\u0947\u0902 \u0924\u093e\u0915\u093f \u092e\u0948\u0902 GATE 2025 Discrete Mathematics (Propositional Logic) \u0915\u0947 Statement-based Problem \u0915\u094b \u0939\u0932 \u0915\u0930\u0928\u0947 \u092e\u0947\u0902 \u0906\u092a\u0915\u0940 \u092e\u0926\u0926 \u0915\u0930 \u0938\u0915\u0942\u0901\u0964 \u0905\u0917\u0930 \u092f\u0939 \u0924\u093e\u0930\u094d\u0915\u093f\u0915 \u0915\u0925\u0928\u094b\u0902 (Logical Statements), \u0938\u0924\u094d\u092f \u0938\u093e\u0930\u0923\u0940 (Truth Table), \u092a\u0930\u093f\u0923\u093e\u092e (Implication) \u092f\u093e \u0924\u093e\u0930\u094d\u0915\u093f\u0915 \u092a\u094d\u0930\u092e\u0947\u092f (Logical [&hellip;]<\/p>\n","protected":false},"author":71,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[],"class_list":["post-2940","post","type-post","status-publish","format-standard","hentry","category-discrete-mathematics"],"_links":{"self":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/2940","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\/71"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/comments?post=2940"}],"version-history":[{"count":0,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/2940\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/media?parent=2940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/categories?post=2940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/tags?post=2940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}