15 workers can finish a wall in 8 days. How many days will 20 workers take?

  1. 4 days
  2. 6 days
  3. 10 days
  4. 8 days
Answer

B) 6 days

Total work = 15 8 = 120 worker-days; 120 div 20 = 6 days.

Quantitative Reasoning MCQ · More Speed, Time, Work & Ages MCQs · Practise