Multiple choice

Direction : Study the following questions carefully and choose the right answer. A contractor decided to complete a work in 90 days. He employed 250 men at the beginning and another 150 men after 60 days and completed the work in stipulated time. Had he not employed the additional men, what percent more time he would have taken to finish the work?

  1. 27%

  2. 30%

  3. 20%

  4. 50%

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
AI explanation

The total work is 250 men multiplied by 90 days plus 150 men multiplied by 30 days, equaling 27000 man days. Without the additional men, 250 men would take 27000 divided by 250 days, which equals 108 days. This is an 18 day increase over the original 90 days, meaning the percentage increase is (18/90) multiplied by 100, resulting in 20 percent more time.

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