Q. If 12 men can complete a piece of work in 15 days, in how many days will 20 men complete the same work?
✅ Correct Answer: (A)
9 days
Explanation: Work ∝ 1/men → 12 × 15 = 180 man-days → 180/20 = 9 days.
Explanation by: Mr. Dubey
Work ∝ 1/men → 12 × 15 = 180 man-days → 180/20 = 9 days.