SOLUTION: An express bus travels a certain 250-mi route in 1.0 h less time than it takes a local bus to travel a 240-mi route. Find the speed of each bus if the speed of the local is 10 mi/h
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Question 1074789: An express bus travels a certain 250-mi route in 1.0 h less time than it takes a local bus to travel a 240-mi route. Find the speed of each bus if the speed of the local is 10 mi/h less than that of the express Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! Let n be the speed of the local bus. Then the express bus would be n+10. So:
240/n-250/(n+10)=1
240n+2400-250n=nē+10n
nē+20n-2400=0
(n+60)(n-40)=0
n=40 or -60
The local bus travels 40 mph; the express bus travels 50 mph. ☺☺☺☺
