1. If interest being compound half yearly then what sum (in Rs.) will amount to Rs. 38416 in 2 years at the rate of 80% per annum at compound interest ?
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- By: anil on 05 May 2019 02.27 amLet principal sum = Rs. $$P$$ and amount = Rs. 38,416 Rate of interest = 80% and time = 2 years Amount if interest being compound half yearly = $$P(1+frac{R}{200})^{2T}$$ => $$P(1+frac{80}{200})^{2 imes2}=38,416$$ => $$P imes(frac{7}{5})^4=38,416$$ => $$P=38,416 imesfrac{625}{343 imes7}$$ => $$P=16 imes625=Rs.$$ $$10,000$$ => Ans - (C)
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