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    Question

    If 72% of (P - Q) is equal to 30% of 60% of (P + Q), then

    find the value of Q:P.
    A 3:5 Correct Answer Incorrect Answer
    B 5:4 Correct Answer Incorrect Answer
    C 2:3 Correct Answer Incorrect Answer
    D 1:3 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Given

    72% of (P - Q) = 30% of 60% of (P + Q)

    Or, 18 × (P - Q) = 9 × (P + Q) [since 72% = 18/25 and 30% of 60% = 18% = 9/50 × 2]

    Or, 18P - 18Q = 9P + 9Q

    Or, 9P = 27Q

    Or, Q/P = 1/3

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