A longboat travelling at 25 km/hr will cover 25 km in 2 hours.
A car is travelling at a uniform speed of 75 km/hr. How much distance will it cover in 20 minutes ?
(a) 25 km (b) 15 km (c) 30 km (d) 20 km
A car started at a speed of 10 km/hr and increasing its speed by 5 km/hr for every 1 hour. If the car has travelled for 4 hours then find its average speed.