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    Question

    If 4593 = 63, 7658 = 78, 885 = 63, then 9783 =

    ?
    A 87 Correct Answer Incorrect Answer
    B 88 Correct Answer Incorrect Answer
    C 81 Correct Answer Incorrect Answer
    D 72 Correct Answer Incorrect Answer

    Solution

    The sum of all the digits of the given number is multiplied by '3' to get the resultant number. In '4593’ = 51', = (4 + 5 + 9 + 3) X 3 = 21 X 3 = 63. In '7658’ = 66', = (7 + 6 + 5 + 8) X 3 = 26 X 3 = 78 In '885’ = 60', = (8 + 8 + 5) X 3 = 21 X 3 = 63 Similarly, in ‘9783’ = ?' = (9 + 7 + 8 + 3) X 3 = 27 X 3 = 81.

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