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      Question

      If 64% of (P - Q) is equal to 20% of 80% 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 1:2 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Given

      64% of (P - Q) = 20% of 80% of (P + Q)

      Or, 4 × (P - Q) = P + Q

      Or, 4P – 4Q = P + Q

      Or, 3P = 5Q

      Or, Q/P = 3/5

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