Question
A certain sum of money invested at a rate of 36% p.a.
amounts to Rs. 30417.5 at the end of 15 months if the rate of interest is compounded 5 monthly. Find the sum (in Rs.).Solution
Desired rate = (5/12) × 36 = 15% Let the sum is Rs. ‘P’. So, 1.15 × 1.15 × 1.15 × P = 30417.5 Or, P = 20000
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