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  • A man borrows some money at 3% S.I. per annum and lends it to somebody at 5% interest compounded annually.By this, he makes a profit of Rs 541 in 3 years.How much did he borrow?

A man borrows some money at 3% S.I. per annum and lends it to somebody at 5% interest compounded annually.By this, he makes a profit of Rs 541 in 3 years.How much did he borrow?

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eginarrayl extGiven,\ extBorrow SI at=3\% per annum extand lend Compounded at=5\% \ extProfit in 3 year=541 Rs\ extLet principal amount is A\ extProfit=Aleft(1+frac5100 ight)^3-Aleft(1+frac3 imes3100 ight)\ 541=Aleft(0.068 ight)\ Rightarrow A=7955.9 Rs\ extSo, He borrowed 7955.9 Rs.endarray

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Deependra Verma

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