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    Question

    A person invested Rs. 16500 in the simple interest for 3

    years at the rate of 19% per annum. If the interest received is Rs. 940Z, then find the value of Z 2 . (Note- Z is the unit digit of the number "940Z".)
    A 64 Correct Answer Incorrect Answer
    B 16 Correct Answer Incorrect Answer
    C 36 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution


    S.I = P * R * T/100
    = Rs. 16500 * 19 * 3/100
    = Rs. 9405
    S.I = Rs. 940Z = Rs. 9405
    So, Z = 5
    Hence, Z 2 = 25

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