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    Question

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

    alike in a certain manner and one is different. Choose the different number-pair.
    A 16 : 256 Correct Answer Incorrect Answer
    B 36 : 1296 Correct Answer Incorrect Answer
    C 64 : 4096 Correct Answer Incorrect Answer
    D 81 : 6461 Correct Answer Incorrect Answer

    Solution

    In each pair, the second number is the square of the first number. In option (A): 16 : 256 → 16² = 256 In option (B): 36 : 1296 → 36² = 1296 In option (C): 64 : 4096 → 64² = 4096 In option (D): 81 : 6461 → 81² = 6561

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