Question

    Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.

    A (14, 191) Correct Answer Incorrect Answer
    B (10, 99) Correct Answer Incorrect Answer
    C (16, 249) Correct Answer Incorrect Answer
    D (18, 312) Correct Answer Incorrect Answer

    Solution

    14² - (1 + 4) = 196 – 5 = 191 10² - (1 + 0) = 100 – 1 = 99 16² - (1 + 6) = 256 – 7 = 249 18² - (1 + 8) = 324 – 9 = 315

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