Train A has a speed 20 miles per hour greater than that of train B. If train A travels 270 miles in the same times train B travels 230 miles, what are the speeds of the two trains?

Answer 1

I would let x = speed of train B
and x + 20 = speed of train A
You know the times are equal for the two trains so distance = rate x time or
time = distance/rate
[270/(x+20)] = (230/x)
Solve for x and x + 20.