Question

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

    152        142       122      ?      52       2

    A 108 Correct Answer Incorrect Answer
    B 76 Correct Answer Incorrect Answer
    C 88 Correct Answer Incorrect Answer
    D 92 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    152 – 10 = 142 142 – 20 = 122 122 – 30 =  92 92 – 40 = 52 52 – 50 = 2

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