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    Question

    55% of 220 – 15% of 40 = 20% of

    ?
    A 540 Correct Answer Incorrect Answer
    B 560 Correct Answer Incorrect Answer
    C 580 Correct Answer Incorrect Answer
    D 575 Correct Answer Incorrect Answer
    E 600 Correct Answer Incorrect Answer

    Solution

    55% of 220 – 15% of 40 = 20% of ?
    0.20 × ? = 0.55 × 220 – 0.15 × 40
    0.20 × ? = 121 – 6
    0.20 × ? = 115
    ? = 575

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