The difference between the compound interest and the simple interest on a sum for 3 years at 10% per annum is Rs. 186. What is the sum?
Correct answer A. Rs. 6,000
Explanation
For 3 years, CI − SI = P(R/100)²(3 + R/100) = P × 0.01 × 3.1 = 0.031P. So P = 186 / 0.031 = Rs. 6,000.
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