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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 164 : 256 Correct Answer Incorrect Answer
    B 325 : 625 Correct Answer Incorrect Answer
    C 152 : 32 Correct Answer Incorrect Answer
    D 241 : 10 Correct Answer Incorrect Answer

    Solution

    The pattern followed here is: The sum of all digits of the first number is multiplied by the square of the last digit of the first number. Option (a) 164 : 256 → (1 + 6 + 4) × (4)² = (11 × 16) = 176 Option (b) 325 : 625 → (3 + 2 + 5) × (5)² = (10 × 25) = 250 Option (c) 152 : 32 → (1 + 5 + 2) × (2)² = (8 × 4) = 32 Option (d) 241 : 10 → (2 + 4 + 1) × (1)² = (7 × 1) = 7

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