Question
The difference between the compound interest compounded
annually and simple interest on a sum at 10% p.a. for 2 years is Rs. 210. Find the sum.Solution
ATQ,
Let the sum = Rs. x According to the question, x(1 + 10/100)² – x – x × 10% × 2 = 210 x(121/100) – x – (20x/100) = 210 121x/100 – x – x/5 = 210 (121x – 100x – 20x) / 100 = 210 1x / 100 = 210 x = Rs. 21,000
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