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    Question

    54.8% of 800 - √(?) = 33.98% of 400 – 12.42% of

    300 What approximate value should come in place of the question-mark(?) in the following question (You are not expected to calculate the exact value).
    A 67600 Correct Answer Incorrect Answer
    B 56700 Correct Answer Incorrect Answer
    C 56000 Correct Answer Incorrect Answer
    D 240 Correct Answer Incorrect Answer
    E 115600 Correct Answer Incorrect Answer

    Solution

    55/100 × 800 - √(?)  = 34/100 × 400 - 12/100 × 300 440 - √(?) = 136 – 36 √(?) = 440 – 100 √(?) = 340 ? = 3402 = 115600

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