Question

When the simple interest on a certain sum of money for 3 years at 5% per annum is 67.5, then the compound interest (in 3) at the rate of 10% and for the san 1231100 a6d 100 AN 23963110 O 141.25 O *148.95 6.198718/72 O 146.50​

Answer 1

Solution



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Correct option is B)

⇒  We have, R=5,%T=1year and C.I.=Rs,2525

⇒  CompoundInterest=A−P

⇒  CompoundInterest=P(1+100R)T−P

⇒   25=P(1+1005)1−P

⇒   25=P(2021−1)

⇒   P=Rs.500

⇒  Now, we have to find simple interest for 2 years using same money.

⇒  S.I=100P×R×T

⇒  S.I=100500×5×2

∴      S.I.=Rs.50

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