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    Question

    Complete the analogy. 81 : 45 :: 72 :

    ?
    A 55 Correct Answer Incorrect Answer
    B 45 Correct Answer Incorrect Answer
    C 50 Correct Answer Incorrect Answer
    D 48 Correct Answer Incorrect Answer

    Solution

    The sum of the digits of the 1st number is multiplied by 5 to obtain the 2nd number. 81 : 45 → (8+1) = 9,(9 × 5) = 45 Similarly, 72 : ? → (7 + 2) = 9,(9 × 5) = 45.

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