Question
Raj invested Rs. ‘5y’ in scheme ‘C’ offering
simple interest of 20% p.a. and reinvested the interest earned from scheme ‘C’ at the end of 3 years in scheme ‘D’ offering compound interest of 25% p.a. compounded annually. If the total amount received from scheme ‘D’ after 1 year is Rs.1500, find the value of ‘15y’.Solution
According to the question; 1.25 × {0.20 × 3 × 5y} = 1500 Or, {0.20 × 3 × 5y} = 1200 Or, y = 400 So, 15y = 15 × 400 = 6000
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