Question
Rs.800 becomes Rs.956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will 800 become in 3 years ?
Answer: Option D
Answer: (d)Using Rule 1,S.I. = 956 - 800 = Rs.156Rate = ${S.I. × 100}/{Principal × Time}$= ${156 × 100}/{800 × 3}$ = 6.5% per annumNew rate = 10.5%S.I. = ${\text"Principal × Rate × Time"/100$= ${800 × 3 × 10.5}/100$ = Rs.252 Amount = 800 + 252 = Rs.1052
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Answer: (d)Using Rule 1,S.I. = 956 - 800 = Rs.156Rate = ${S.I. × 100}/{Principal × Time}$= ${156 × 100}/{800 × 3}$ = 6.5% per annumNew rate = 10.5%S.I. = ${\text"Principal × Rate × Time"/100$= ${800 × 3 × 10.5}/100$ = Rs.252 Amount = 800 + 252 = Rs.1052
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