SOLUTION: A train covers a distance of 720km at a speed of x km/h. On the return trip it travels at an average speed of y km/h and completes the whole journey in an hour less. If the speed

Algebra ->  Proportions  -> Lessons -> SOLUTION: A train covers a distance of 720km at a speed of x km/h. On the return trip it travels at an average speed of y km/h and completes the whole journey in an hour less. If the speed      Log On


   



Question 990559: A train covers a distance of 720km at a speed of x km/h. On the return trip it travels at an average speed of y km/h and completes the whole journey in an hour less. If the speed during the reurn journey was 10km /h more, what were the speeds in minutes/sec.
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
Minutes per second is not a unit of speed.
It is a number, though:
There are 0.0167 minutes/sec.