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    Question

    25% of 300 + √(?) = 35% of 600 - 15% of

    300 What will come in place of the question mark (?) in the following question?
    A 8150 Correct Answer Incorrect Answer
    B 8250 Correct Answer Incorrect Answer
    C 8400 Correct Answer Incorrect Answer
    D 8900 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    25/100× 300 + √(?) =35/100× 600 - 15/100× 300 75 + √(?) = 210 –45 √(?) = 210 – 45 – 75 √(?) = 90 ? = (90)2 = 8100

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