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      Question

      12 engineers complete designing 180 blueprints in 15

      days. If the goal is to complete 270 blueprints in 18 days, how many engineers are required?
      A 18 Correct Answer Incorrect Answer
      B 9 Correct Answer Incorrect Answer
      C 13 Correct Answer Incorrect Answer
      D 15 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the required number of engineers be β€˜w’ and let efficiency of each engineer be β€˜M’ units per day

      (12 Γ— 15 Γ— M) Γ· 180 = (18 Γ— w Γ— M) Γ· 270

      So, w = 15

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