SOLUTION: Ricky drove from Town A to Town B in 3 hours. His return trip from Town B to Town A took 5 hours because he drove 15 miles per hour slower ...how fast did ricky drive from a to b?

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Question 457494: Ricky drove from Town A to Town B in 3 hours. His return trip from Town B to Town A took 5 hours because he drove 15 miles per hour slower ...how fast did ricky drive from a to b?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
A to B x mph
B to A 15 mph slower
returning speed x-15
returning time = 5 hours
going out time= 3 hours

Distance = same
3 x = 5 ( x -15 )
3 x = 5 x 0 -75
3 x - 5 x = -75
-2 x =-75
/ -2
x=37.5 mph

Returning speed= 22.5 mph