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    Question

    What will come in place of question mark (?)

    √? = 80% of 720 - 22% of

    2500
    A 676 Correct Answer Incorrect Answer
    B 650 Correct Answer Incorrect Answer
    C 550 Correct Answer Incorrect Answer
    D 632 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, √? = 80% of 720 - 22% of 2500 Or, √? = 0.8 X 720 - 0.22 X 2500 Or, √? = 576 - 550 Or, √? = 26 On squaring the above equation, we get, ? = 676

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