Question

Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at
90
kilometers per hour. The eastbound train travels at
80
kilometers per hour. How long will it take for the two trains to be
442
kilometers apart?
Do not do any rounding.

Answer 1

the speed at which they are going apart is 90 + 80 = 170 mph

to find the time use the formula

speed = distance / time

rearranging

time = distance / speed

Answer 2

just plug in speed and distance

Answer 3

ok?

any questions?

Answer 4

time = 442 / 170 = ?

Answer 5

2.6 hours

Answer 6

thanks @welshfella