Question
Ravi invested Rs. ‘x’ at 12% simple interest p.a. and
Ramesh invested Rs. (x + 600) at 9% simple interest p.a. If at the end of 3 years, the total interest received by both is Rs. 1620, find the value of ‘x’.Solution
According to the question,(x × 0.12 × 3) + {(x + 600) × 0.09 × 3} = 1620Or, 0.36x + 0.27x + 162 = 1620Or, 0.63x = 1458Or, x = 1458 / 0.63 = 2314.29Or, x = Rs. 2314.29
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