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    Question

    What value should come in place of the question-mark (?) in the following questions:

    116*2/3% of 18600 + 666*2/3% of 1290 = 457*1/7% of 1750

    + 555*5/9% of 3150 + ?
    A 5200 Correct Answer Incorrect Answer
    B 4800 Correct Answer Incorrect Answer
    C 4200 Correct Answer Incorrect Answer
    D 5600 Correct Answer Incorrect Answer
    E 5800 Correct Answer Incorrect Answer

    Solution

    Value of 100% = 1 116*2/3% = 100% + 16*2/3% = 1 + 1/6 = 7/6 666*2/3% = 600% + 66*2/3% = 6 + 2/3 = 20/3 457*1/7% = 400% + 57*1/7% = 4 + 4/7 = 32/7 555*5/9% = 500% + 55*5/9% = 5 + 5/9 = 50/9 Now,   116*2/3% of 18600 + 666*2/3% of 1290= 457*1/7% of 1750 + 555*5/9% of 3150 + ? 7/6 × 18600 + 20/3 × 1290= 32/7 × 1750+ 50/9 × 3150+ ? 21700 + 8600= 8000 + 17500 + ? ? = 4800

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