s person borrowed a certain sum of money at the rate of 15%p.a. compound interest. He paid rp 1290 as interest after two years. find the sum brrowed.
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Answer:
Given details are,
Rate = 15 % per annum
Time = 2 years
CI = Rs 1290 By using the formula,
CI = P [(1 + R/100)n – 1]
1290 = P [(1 + 15/100)2 – 1]
1290 = P [0.3225] P = 1290/0.3225 = 4000
∴ The sum is Rs 4000.
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