Difficulty Level: Hard
Stats: 918 / 2,730
( 33.63% ) got this right
A hiker travels his first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the 320 km traveled is:
- 70.5 km/hr
- 71.11 km/hr
- 72 km/hr
- 72.25 km/hr
- 74 km/hr