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    Question

    520    79    440    151     376   

     ? What will come in place of the question mark (?) in each of the following series?
    A 220 Correct Answer Incorrect Answer
    B 211 Correct Answer Incorrect Answer
    C 207 Correct Answer Incorrect Answer
    D 215 Correct Answer Incorrect Answer
    E 200 Correct Answer Incorrect Answer

    Solution

    520 - 212 = 79 79 + 192 = 440 440 - 172 = 151 151 + 152 = 376 376 - 132 = 207

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