2023 · Q64
How long will a man take to walk around the boundary of a square field of area 25 hectares at the rate of 5 km/hr?
Elementary MathematicsTime, Speed and Distance
- A36 minutes
- B30 minutes
- C24 minutes
- D18 minutes
Explanation
25 hectares = 250000 m², so the square's side is 500 m and its perimeter is 2000 m = 2 km. At 5 km/h the walk takes 2/5 hour = 24 minutes (C).