Question 481745
Distance = 510 miles
west bound train speed =x
east bound train = x+10

they are moving away.
so combined speed = x+x+10=2x+10
Time = 3hours

Distance = speed * time
510=(2x+10)*3
510/3 = 2x+10
170=2x+10
170-10=2x
160=2x
x= 80 mph

East bound train speed = 80+10 = 90 mph
m.ananth@hotmail.ca