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    Question

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

    20 25 54 165 662 ?

    A 4511 Correct Answer Incorrect Answer
    B 2031 Correct Answer Incorrect Answer
    C 1831 Correct Answer Incorrect Answer
    D 3311 Correct Answer Incorrect Answer
    E 5351 Correct Answer Incorrect Answer

    Solution

    x 1 + 5, x 2 + 4, x 3 + 3, x 4 + 2, x 5 + 1

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