Question
A man invested Rs. 20,000 at simple interest of 'x%'
p.a. and received Rs. 40,000 after 2 years. If he had invested Rs. 25,000 at simple interest of 'x%' p.a. for 3 years, then find the interest earned by him from this investmentSolution
Total interest earned in 2 years = 40000 - 20000 = Rs. 20,000 ATQ; 20000 = (20000 X x X 2) ÷ 100 Or, x = 50 So, required interest earned = (25,000 X 50 X 3) ÷ 100 = Rs. 37500
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