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    Question

    Anita invests Rs. 9,200 at 7% simple interest per annum for

    3 years. If the total amount becomes Rs. '2k', then calculate the product of digits of 'k'.
    A 900 Correct Answer Incorrect Answer
    B 500 Correct Answer Incorrect Answer
    C 740 Correct Answer Incorrect Answer
    D 800 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Simple interest = Principal Ă— Rate Ă— Time Ă· 100

    Interest = 9,200 Ă— 7 Ă— 3 Ă· 100 = Rs. 1,932

    2k = 9,200 + 1,932

    Or, 2k = 11,132

    Or, 'k' = 5,566

    Required product = 5 Ă— 5 Ă— 6 Ă— 6 = 900

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