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      Question

      15 men can do a work in 30 days. After 18 days of work,

      5 more men were engaged to finish the work. The number of days required to complete the remaining work is:
      A 6 Correct Answer Incorrect Answer
      B 8 Correct Answer Incorrect Answer
      C 10 Correct Answer Incorrect Answer
      D 9 Correct Answer Incorrect Answer

      Solution

      ATQ- 15Γ—30 = (15Γ—18) +(20Γ—a) 450 =270+20a 20a =180 A = 9 days.

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