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    If 20% of 420 is x% less than 40% of 530, find x. (Up to two decimals)
    Question

    If 20% of 420 is x% less than 40% of 530, find x. (Up to two decimals)

    A.

    60.37%

    B.

    81.25%

    C.

    92%

    D.

    71.25%

    Correct option is A

    20% of 420 = 84
    40% of 530 = 212

    Let x% be the required percentage.
    84 = 212 − (x/100 × 212)
    212 − 84 = 212x/100
    128 = 212x/100
    x = (128 × 100) / 212
    x ≈ 60.37%

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