Question

The speed of train A is 20mph slower than the speed of train B. Train A travels 210miles in the same time it takes train B to travel 310 miles. find the speed of each train. @-------College Al…

Answer 1

Is it 42mph and 62mph

Answer 2

Train B:
Speed = X
Travels 310miles in Y amount of time
310/X = Y ------ (equation 1)

Train A:
Speed = X-20
Travels 210miles in Y amount of time
210/(X-20) = Y ------ (equation 2)

Knowing that:\[\frac{310}{x} = \frac{210}{x-20}\]\[210x = 310x - 620\]

solve for X, then plug back into the equations 1 and 2 to find each train speed