Let t be the time taken by trains
The eastbound train travels at 60 miles per hour.
we know Distance = speed * time
Speed is 60 miles per hour
So distance traveled by eastbound train = 60 t
The westbound train travels at 80 miles per hour.
Speed is 80 miles per hour
So distance traveled by westbound train= 80 t
Two trains are 252 miles part
Distance covered by eastbound train + distance covered by westbound train= 252
60t + 80 t = 252
140t = 252
Divide both sides by 140
So t= 1.8
It will take 1.8 hours for the two trains to be 252 miles apart
