Question

A man Travels a certain distance by train in 4 hours and 12 minutes at the rate 44.8

kilometre per hour how much time will it take to cover the same distance if the speed of train is

increased to 57.6 kilometre per hour ?​

Answer 1

s=d/t

d=s×t

d=44.8×21/5

d=188.16

now , s=57.6 and d=188.16

t=d/s

t=188.16/57.6

t=3.2