A bus moving at 40 km per hour covers a distance in 6 hours 15 minutes. If it travels the same distance at 50 km per hour how long will it take to cover the distance ?
[ A ] 5 hrs
[ B ] 6 hrs
[ C ] 4 hrs
[ D ] 2 hrs
Answer : Option A
Explanation :
ATQ,
Total distance = 40 × 6.25 = 250 km Speed = 50 km/hr
Required time = $250\over50$ = 5 hours