Answer
eastbound train: 40 mph
westbound train: 80 mph
Work Step by Step
westbound = 2* eastbound
total distance =150 miles
total time = 1.25 hours
150 miles/1.25 hours = 120 mph
$x+2x=120$
$3x=120$
$3x/3=120/3$
$x=40$
$x=40$
$2*x=40*2$
$2x=80$
