Question
A sum was invested at 12.5% simple interest for 3 years.
If the same sum was invested at 4.16% more for the same period, then it would have fetched Rs.120 more. Find the amount invested. (in Rs.)Solution
SI @ 12.5% p.a. = (12.5 × 3 × P)/100 = 0.375P SI @ (12.5% + 4.16% = 16.66%) = (16.66 × 3 × P)/100 = 0.4998P ATQ, 0.4998P - 0.375P = 120 0.1248P = 120 P = 961 so, according to option 960 is the closest answer.
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