Question

a distance between two points A and B in 5 ½ hour at a speed of 50 km /hr .if the speed is increased by 5 km/hr how much time would be saved?​

Answer 1

Answer: 5km/h

Explanation:Let distance between them be x

time taken to travel at 50kmph is 5.5 hrs.

so distance is 50 ×5.5=275km

if speed is increased by 5kmph new speed is 55kmph

so time taken is 275/55=5 hrs

so half hr will be saved if speed is increased by 5kmph.