Question

A motorist takes 4. 5 hours to reach his destination at 80km/ h.

If he wants to complete his journey in 4 hours at what speed must he travel

Answer 1

71.11 km/h

Explanation:

D = S/T

D = distance

S = Speed

T = Time

The motorist is going 80km/h and takes 4.5 hours to reach his destination.

80/4.5 = 17.77km

The motorist travels 17.77km

Now find how fast he'll have to go to reach 17.77km in 4 hours.

17.77 * 4 = [71.11 km/h]