1. Simple Interest received by a person in 10 years on a principal of Rs 9500 is 130% of the principal. What is the rate of interest (in %) per annum?
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- By: anil on 05 May 2019 01.47 amLet the principal amount = Rs. $$100x$$ => Simple interest = $$frac{130}{100} imes100x=Rs.$$ $$130x$$ Let rate of interest = $$r\%$$ and time period = 10 years => $$S.I. = frac{P imes r imes t}{100}$$ => $$frac{100x imes r imes10}{100}=130x$$ => $$10r=130$$ => $$r=frac{130}{10}=13\%$$ => Ans - (B)
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