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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 54: 40 Correct Answer Incorrect Answer
    B 62: 24 Correct Answer Incorrect Answer
    C 48: 64 Correct Answer Incorrect Answer
    D 72: 32 Correct Answer Incorrect Answer

    Solution

    The pattern followed here is: (The product of digits of first number is multiplied 2 to obtain second number). Option (a) 54: 40 β†’ (5 Γ— 4) = 20, (20 Γ— 2) = 40 Option (b) 62: 24 β†’ (6 Γ— 2) = 12, (12 Γ— 2) = 24 Option (c) 48: 64 β†’ (4 Γ— 8) = 32, (32 Γ— 2) = 64 Option (d) 72: 32 β†’ (7 Γ— 2) = 14, (14 Γ— 2) = 28

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