Question

A boy drives his scooter with a uniform speed of 45 km/h. Find : (i) the distance covered by him in 1 hour 20 min.

Answer 1

Speed : 45 km / hr

Time : 1 hr 20 min

= 1 hr = 60 min

= 60 + 20 = 80 min

= 80/60 hr = 4/3hr

By the formula ,

Speed = distance / time

Distance = speed × time

Distance = 45 × 4/3

Distance = 15 ×4

Distance = 60 km

So the distance covered by the scooter in 1 hr 20 min is 60 km