Question

    What will come in place of question mark (?) in the following series?

    7, 14, 42, 210, 1470,

    ?
    A 15450 Correct Answer Incorrect Answer
    B 16170 Correct Answer Incorrect Answer
    C 13230 Correct Answer Incorrect Answer
    D 14240 Correct Answer Incorrect Answer

    Solution

    7 × 2 = 14 14 × 3 = 42 42 × 5 = 210 210 × 7 = 1470 1470 × 11 = 16170

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