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    Question

    What approximate value should come in place of question mark (?) in the following questions? (You need not to calcualte the exact value)

    (29.97%) of 9840 + ? + (45.17% of 1240) = (31.99% of

    11750)
    A 150 Correct Answer Incorrect Answer
    B 400 Correct Answer Incorrect Answer
    C 180 Correct Answer Incorrect Answer
    D 250 Correct Answer Incorrect Answer
    E 280 Correct Answer Incorrect Answer

    Solution

    (29.97%) of 9840 + ? + (45.17% of 1240) = (31.99% of 11750) => 30% of 9840 + ? + 45% of 1240 = 32% of 11750 ⇒ 2952 + ? + 558 = 3760 ⇒ ? = 250

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