Question

a train covers 14 km in 10 minutes find the time taken to cover the same distance if the speed of train is reduced by 4km/h

Answer 1

S=d/t S=14/10/60 S=14*6 S=84 km/h If speed is reduced by 4 km/h then it is 80km/h D/s=t 14/80=0.175 hours =10.5 minutes