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    Question

    D irection: Which of the following will replace

    ‘?’ in the following series. 543,’?’, 564 ,588, 660
    A 545 Correct Answer Incorrect Answer
    B 548 Correct Answer Incorrect Answer
    C 556 Correct Answer Incorrect Answer
    D 542 Correct Answer Incorrect Answer
    E 546 Correct Answer Incorrect Answer

    Solution

    Difference of the square of two consecutive prime number added to the number next in series 543 ----  548 ---- 564 ----- 588 ---- 660          5             16             24            72    32 – 22       52-32     72-52     112-72

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