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    Question

    Anjali invested Rs. 9,150 at a simple interest rate of 4%

    p.a. for 5 years. If she receives Rs. '2n' in total, what is the product of all digits in 'n'?
    A 625 Correct Answer Incorrect Answer
    B 750 Correct Answer Incorrect Answer
    C 576 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 = 9,150 × 4 × 5 ÷ 100 = Rs. 1,830

    2n = 9,150 + 1,830

    Or, 2n = 10,980

    Or, n = 5,490

    Required product = 5 × 4 × 9 × 0 = 0

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