A fast humvee drove from desert a to desert b for the first 12 hours it travelled at an average speed of 185km/h for the next 13 hours it travelled at an average speed of 160km/h what was the average speed of the whole journey

The average speed of the whole journey is, v = 172 km/h

Explanation:

It is given that, a fast humvee drove from desert a to desert b. The scenario is as follows :

For the first 12 hours, it traveled at an average speed of 185 km/h. Let d₁ is distance. So,

For the next 13 hours, it traveled at an average speed of 160 km/h. Let d₂ is the distance. So,

Average speed = total distance/time taken

So,

Therefore, the average speed of the whole journey is 172 km/h.

answer: a. same unit

explanation: