SOLUTION: A bus travels at a rate of 120 miles per hour in going to a place and average a round trip route at 150 miles per hour. What is its average rate when it returns to its place of ori

Question 1122629: A bus travels at a rate of 120 miles per hour in going to a place and average a round trip route at 150 miles per hour. What is its average rate when it returns to its place of origin?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A bus travels at a rate of 120 miles per hour in going to a place and average a round trip route at 150 miles per hour. What is its average rate when it returns to its place of origin?
-----
r = return speed
RT Avg = 2*120*r/(120+r) = 150
240r = 150r + 18000
90r = 18000
r = 200 mi/hr
==========
A fast bus.

RELATED QUESTIONS
A man travels a distance of 20 miles at 60 miles per hour and then returns over the same... (answered by stanbon)

A plane flies from Worcester to Chicago at an average rate of 380 mph and returns along... (answered by richwmiller)

A man travels a certain distance at 60 miles per hour and returns over the same road at... (answered by Alan3354)

a bus leaves a city at 12:00 pm and travels 50 miles per hour. A car leaves the same city (answered by josmiceli)

here is a math problem I need some help with Thanks. You are going on a one-way bus... (answered by rfer,jim_thompson5910)

A car travels 120 miles from A to B at 30 miles per hour but returns the same distance at (answered by Alan3354)

A car travels 120 miles from A to B at 30 miles per hour but returns the same distance at (answered by richwmiller)

A girl walked from her home into town at the rate of 4 miles per hour. She returned by... (answered by jim_thompson5910)

A girl walked from her home into town at the rate of 4 miles per hour. She returned by... (answered by ankor@dixie-net.com)