Question

    A sum on simple interest becomes 9/4 times of itself in

    five years, find the rate of interest.
    A 12% Correct Answer Incorrect Answer
    B 25% Correct Answer Incorrect Answer
    C 28% Correct Answer Incorrect Answer
    D 15% Correct Answer Incorrect Answer

    Solution

    Let the principle be Rs.x. So, interest = (9x/4) – x = 5x/4 Time = 5 years => SI = PRT/100 => 5x/4 = (x x 5 x R)/100 => R = 25%

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