A car travels 150 km at 50 km/h and then another 130 km at 65 km/h. What is its average speed for the entire journey?

Explanation

1. 01

   Time for first part $= \frac{150}{50} = 3$ h; second part $= \frac{130}{65} = 2$ h.

2. 02

   Total distance = 280 km, total time = 5 h.

3. 03

   Average speed $= \frac{280}{5} = 56$ km/h.