Question

A fast train takes 3 hrs less than a slow train for a journey of 600km.if the speed of slow train is 10km/hr less than that of fast train. find the speed of 2 trains

Answer 1

let speed of train 1(fast) be X
train take time be T
total distance 600km

now slow train 2
speed X-10km/hr
time taken T+3hr
distance 600km

acc to question
both have same distance so
speed 1 ×time=speed 2×time 2
X ×T= X-10×T+3=600
XT=XT+3X-10T-30=600
XT-XT=3X-10T=630
3X-10T=630