Problema Solution
A train travels 120 miles and returns the same distance in a total of 5 hours. If the speed of the train averaged 20mph slower on the return trip, how fast did the train travel in each direction?
Answer provided by our tutors
suppose speed going = x
then speed returning = (x-20)
we get
120/x + 120/(x-20) = 5
solving we get x = 60
speed going = 60
and returning = 40