Question
 The difference between compound interest and simple
interest on a sum for 3 years at 10% per annum is Rs 62. Find the principal.Solution
ATQ, For 3 years at 10%, CI - SI = P[(1 + 10/100)^3 - 1 - 3(10/100)] = P(1.331 - 1 - 0.3) = P(0.031) Given: 0.031P = 62 P = 62 / 0.031 = 2000
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