Question

A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance?

Answer 1

They will travel same distance at 4 am.

Answer 2

x - hours that passed after 10 pm

(x+1) 36 = x * 42 | / 6
(x+1)6 = 7x
6x+6 = 7x |-6x
x=6

They will travel same distance at 4 am.