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    Question

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

    100     221     77     245     50   

    275
    A 245 Correct Answer Incorrect Answer
    B 275 Correct Answer Incorrect Answer
    C 77 Correct Answer Incorrect Answer
    D 100 Correct Answer Incorrect Answer

    Solution

    100 + 112 = 221 221 – 122 = 77 77 + 132 =  246 246 – 142 = 50 50 + 152 = 275

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