Question
1000 rupees is invested in a scheme p.a. simple
interest. Another amount (1000 – x) is invested in scheme B at 2R% p.a. simple interest. After 5 years, interest earned from scheme A is 20% less than that of scheme B. Find x.Solution
Interest earned from scheme A = (1000 × R × 5)/100 = 50R Interest earned from scheme B = ((1000 – x) × 2R × 5)/100 = R(1000 – x)/10 According to the question, => 50 R = 4/5 × R(1000 – x)/10 => 1000 – x = 625 => x = Rs. 375
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