Question
What principal amount, when invested at an annual simple interest rate of 3.6% for 15 years, will generate an interest of Rs. 4,050?
Solution
Let the sum invested be Rs. 'P'. According to the question, 4050 = (P x 3.6 x 15) ÷ 100 Or, P = (4050/0.54) = 7500 Or, sum invested = Rs. 7,500
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