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      Question

      тАШmтАЩ painters can paint a house in 60 days. If the

      crew increased by 25 painters, they could finish in 40 days. What is the value of тАШmтАЩ?
      A 50 Correct Answer Incorrect Answer
      B 75 Correct Answer Incorrect Answer
      C 15 Correct Answer Incorrect Answer
      D 95 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Total work = 60m units

      So, 60m = (m + 25) ├Ч 40

      Or, 60m тАУ 40m = 1000

      Or, 20m = 1000

      Therefore, m = 1000 / 20 = 50

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