Answer-S borrowed some amount from R and promised to pay him 8% interest. Then S invested the borrowed amou...

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Let the amount borrowed be 100. S pays R 8 interest, so total repayment  100  8  108. S invests 100 in a scheme and earns a 5 profit after paying 108, so total return from scheme  108  5  113. So, the scheme gives 113 on 100 investment  profit  13. Percentage gain if R had invested directly  13100 x  100  13 R would have gained 13.

S borrowed some amount from R and promised to pay him 8% interest. Then S invested the borrowed amount in a scheme, upon which he earned a profit of 5% after paying R, the principal amount with interest. How much percentage R would have gained, if he would have invested in the scheme directly?

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