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    Question

    Sneha lends Rs. 10,400 on simple interest at 9% annually

    for 2 years. If she receives Rs. '2k' at the end, calculate the product of digits of 'k'.
    A 625 Correct Answer Incorrect Answer
    B 750 Correct Answer Incorrect Answer
    C 108 Correct Answer Incorrect Answer
    D 450 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Simple interest = Principal ├Ч Rate ├Ч Time ├╖ 100

    Interest = 10,400 ├Ч 9 ├Ч 2 ├╖ 100 = Rs. 1,872

    2k = 10,400 + 1,872

    2k = 12,272

    k = 6,136

    Product = 6 ├Ч 1 ├Ч 3 ├Ч 6 = 108

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