Question
The interest received on investing Rs. (6p - 200) on
simple interest at 25% p.a. for 2 years is Rs. (2p + 400). Find the ratio (p - 200) :(p + 100)Solution
Simple interest = Principal X rate X time ÷ 100 So, 2p + 400 = (6p - 200) X 25 X 2 ÷ 100 Or, 2p + 400 = 3p - 100 Or, 'p' = 500 Required ratio = (500 - 200) :(500 + 100) = 300:600 = 1:2
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