Ram can run 3 times faster than Rahul. If Rahul's speed is 5 km/hr. Then speed of Ram is ___ km/hr.
Ram can run 3 times faster than Rahul
Rahul's speed = 5 km/hr
So Ram's speed = 3 × 5 = 15km/hr
Ram goes from point A to B by auto at the speed of 20 km/hr and comes back from B to A in a cab at a speed of 80 km/hr. Find his average speed.