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    Question

    What will come in place of (?) in the given number series

    66, 17, 81, ?, 100,

    -21 
    A 14 Correct Answer Incorrect Answer
    B 28 Correct Answer Incorrect Answer
    D 12 Correct Answer Incorrect Answer
    E 100 Correct Answer Incorrect Answer

    Solution

    ATQ, 66 – 72 = 17 17 + 82 = 81 81 – 92 = 0 0 + 102 = 100 100 – 112 = -21

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