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      Question

      (x + 9) laborers complete 45% of a task in 12 days working

      5 hours/day. The rest is done by (x + 4) laborers in 18 days working 5 hours/day. Find x.
      A 16 Correct Answer Incorrect Answer
      B 5 Correct Answer Incorrect Answer
      C 3 Correct Answer Incorrect Answer
      D 18 Correct Answer Incorrect Answer
      E 10 Correct Answer Incorrect Answer

      Solution

      According to the question,
      {(x + 9) × 12 × 5}/0.45 = {(x + 4) × 18 × 5}/0.55
      Or, 22x + 198 = 27x + 108
      Or, x = 18
      Hence, value of x is 18.

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