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    Question

    Aman saves Rs. 5,800 in a bank at 9% simple interest for 4

    years. If he gets back Rs. '2q' in total, calculate the product of digits of 'q'.
    A 625 Correct Answer Incorrect Answer
    B 750 Correct Answer Incorrect Answer
    C 432 Correct Answer Incorrect Answer
    D 450 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Simple interest = Principal × Rate × Time ÷ 100

    Interest earned = 5,800 × 9 × 4 ÷ 100 = Rs. 2,088

    2q = 5,800 + 2,088
    Or, 2q = 7,888

    Or, q = 3,944

    Required product = 3 × 9 × 4 × 4 = 432

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