Question

    Four number pairs have been given, out of which three

    are alike in some manner and one is different. Select the one that is different. 
    A (47, 33) Correct Answer Incorrect Answer
    B (36, 27) Correct Answer Incorrect Answer
    C (26, 32) Correct Answer Incorrect Answer
    D (56, 15) Correct Answer Incorrect Answer

    Solution

    The pattern followed here is: The second number is obtained by subtracting the square of the 2nd digit of the 1st number and the square of the 1st digit of the 1st number. (47, 33) = (7)² - (4)² = 49 - 16 = 33 (36, 27) = (6)² - (3)² = 36 - 9 = 27 (26, 32) = (6)² - (2)² = 36 - 4 = 32 (56, 15) = (6)² - (5)² = 36 - 25 = 11

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