Multiple choice

Twenty-five men can complete a piece of work in 14 days. After every five days, 5 men are called off. How much time will it take to finish the work?

  1. 15 days

  2. 18 days

  3. 20 days

  4. 24 days

  5. 28 days
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total work = 25 * 14 = 350 units. Days 1-5: 25 * 5 = 125. Days 6-10: 20 * 5 = 100. Days 11-15: 15 * 5 = 75. Days 16-20: 10 * 5 = 50. Total = 125+100+75+50 = 350. The work is finished in 20 days.

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