Featured Original PDF
Featured Original PDF
PROBLEMS ON TRAINS IMPORTANT FACTS AND FORMULAE a km/hr= (a* 5/18) m/s. a m / s = (a*18/5) km/hr. 3 Time taken by a train of length 1 metres to pass a pole or a standing man or a signal post is equal to the time taken by the train to cover 1 metres. Time […]
RATIO AND PROPORTION IMPORTANT FACTS AND FORMULAE RATIO: The ratio of two quantities a and b in the same units, is the fraction a/b and we write it as a:b. In the ratio a:b, we call a as the first term or antecedent and b, the second term or consequent. Ex. The ratio 5: 9 […]
NUMBERS IMPORTANT FACTS AND FORMULAE I..Numeral : In Hindu Arabic system, we use ten symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 called digits to represent any number. A group of digits, denoting a number is called a numeral. We represent a number, say 689745132 as shown below : Ten Crores (108) […]
PROFIT AND LOSS COST PRICE: THE PRICE AT WHICH ARTICLE IS PURCHASED.ABBREVATED AS C.P. SELLING PRICE: THE PRICE AT WHICH ARTICLE IS SOLD. PROFIT OR GAIN:IF SP IS GREATER THAN CP,THE SELLING PRICE IS SAID TO HAVE PROFIT OR GAIN. LOSS: IF SPIS LESS THAN CP,THE SELLER IS SAID TO INCURED A LOSS. FORMULA 1.GAIN=(SP)-(CP). […]
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SIMPLE INTEREST IMPORTANT FACTS AND FORMULAE 1.. Principal: The money borrowed or lent out for a certain period is called the principal or the sum. 2. Interest: Extra money paid for using other’s money is called Simple Interest (S.I.) : If the interest on a sum borrowed for a certain period is reckoned uniformly, then […]