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      Question

      If p:q = 5:7 and p + q = 408, then find the value of (q

      - p).
      A 88 Correct Answer Incorrect Answer
      B 68 Correct Answer Incorrect Answer
      C 78 Correct Answer Incorrect Answer
      D 48 Correct Answer Incorrect Answer

      Solution

      ATQ, Let 'p' and 'q' be '5x' and '7x', respectively. ATQ; 5x + 7x = 408 Or, 12x = 408 Or, x = 34 So, (q - p) = (7x - 5x) = 2x = 2 ├Ч 34 = 68

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