If 36 farmers can do a piece of work in 24 hours, in how many hours will 18 farmers do it?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 48 hours
The total work is the same, so it can be measured in farmer-hours (number of farmers × hours). Fewer farmers need proportionally more hours.
Work \(=36\times24=864\) farmer-hours
Hours for 18 farmers \(\displaystyle =\frac{864}{18}=48\)