Question

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

    1, 2, 6, 21, 88, ?
    A 250 Correct Answer Incorrect Answer
    B 300 Correct Answer Incorrect Answer
    C 360 Correct Answer Incorrect Answer
    D 445 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Check differences:

    1 × 1 + 1 = 2

    2 × 2 + 2 = 6

    6 × 3 + 3 = 21

    21 × 4 + 4 = 88

    88 × 5 + 5 = 445

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