Question

13. Poonam borrowed from Pushpa a certain sumfor two years at simple interest. Poonam lent thissum to Alka at the same rate for two yearscompound interest. At the end of two years shereceived 110 as compound interest but paid* 100 as simple interest. Find the sum and rate ofinterest.​

Answer 1

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1st yr. 2nd yr

50. 50

50. 60

Rate = 10*100/50 = 20%

P = SI*100/R*T = 100*100/20*2 = 250 (Ans)

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