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    Question

    If 70% of (P - Q) is the same as 35% of 80% of (P + Q),

    then what is the ratio of Q to P?
    A 3:5 Correct Answer Incorrect Answer
    B 5:4 Correct Answer Incorrect Answer
    C 2:3 Correct Answer Incorrect Answer
    D 1:7 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Given

    70% of (P - Q) = 35% of 80% of (P + Q)

    Or, 7 × (P - Q) = 28 × (P + Q) [70% = 7/10, and 35% of 80% = 28% =
    28/100]

    Or, 7P - 7Q = 28P + 28Q

    Or, -21P = 35Q

    Or, Q/P = -3/5

    Or, Q:P = 3:5

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