Question

A motorist travelled 300 km

at an average
OF 75 km / h In and returned at an average speed of v km / b . if his average speed for the whole journey is 60km/h, find v?​

Answer 1

Explanation:

Total distance /total time=total speed

600÷60=10hrs

300÷75=4hrs

I0-4=6

V=300÷6=50km/h