Question

    In each of the following number series, a wrong number is given, find out that number.

    56.

    23     45     89     177     363     705
    A 177 Correct Answer Incorrect Answer
    B 45 Correct Answer Incorrect Answer
    C 89 Correct Answer Incorrect Answer
    D 363 Correct Answer Incorrect Answer

    Solution

    23 + 22 = 45 45 + 44 = 89 89 + 88 = 177 177 + 176 =  353 353 + 352 = 705

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