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      Question

      40 men can complete a piece of work in 48 days. β€˜x’

      men started the work and after 33 days 64 more men joined them so that whole work was finished in the desired time. Find the value of β€˜x’
      A 22 Correct Answer Incorrect Answer
      B 23 Correct Answer Incorrect Answer
      C 20 Correct Answer Incorrect Answer
      D 25 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Total work = 40 Γ— 48 = 1920 units According to question; 33 Γ— x + 15 Γ— (x + 64) = 1920 Or, 33x + 15x + 960 = 1920 Or, 48x = 960 Or, x = 20

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