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    Question

    Four number-pairs are given, which of them three are

    alike in certain manner and one is different. Choose the different number-pair.
    A 842: 32 Correct Answer Incorrect Answer
    B 731: 21 Correct Answer Incorrect Answer
    C 594: 45 Correct Answer Incorrect Answer
    D 485: 24 Correct Answer Incorrect Answer

    Solution

    The pattern followed here is: The 2nd number is product of 1st and 2nd digit of 1st number from the left end. 842: 32 = (8 × 4) = 32 731: 21 = (7 × 3) = 21 594: 45 = (5 × 9) = 45 485: 24 = (4 × 8) = 32 In option D, the product is 32, but the 2nd number given is 24.

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