SOLUTION: train travelling @ 40kph leaves 10 mins before train travelling @ 60kph.when will they meet??

Question 397193: train travelling @ 40kph leaves 10 mins before train travelling @ 60kph.when will they meet??
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
How far does the 1st train get in 10 min?
(10 min is 1/6 of an hour)
km
Now if the 2nd train has to travel km to
meet the 1st train, then the 1st train has to
travel km
They will both travel for the same time period
1st train:
(1)
2nd train:
(2)
Substitute (2) in (1)

hr
They will meet 20 min after the 2nd train leaves
check answer:
(2)

km
and
(1)