SOLUTION: Bus A takes 21 minutes to complete its route. Bus B takes 35 minutes to complete its route. If both buses leave the station at 7:30 A.M., at what time will they arrive at the stati

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Bus A takes 21 minutes to complete its route. Bus B takes 35 minutes to complete its route. If both buses leave the station at 7:30 A.M., at what time will they arrive at the stati      Log On

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Question 905620: Bus A takes 21 minutes to complete its route. Bus B takes 35 minutes to complete its route. If both buses leave the station at 7:30 A.M., at what time will they arrive at the station at the same time?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
each time around, the slower bus
loses +35+-+21+=+14+ min
When the slower bus has gone around
5 times it takes 105 min
----------
When the faster bus has gone around
3 times, it takes 105 min also
-----------------
105 min after 7:30 AM is when
they arrive at the same time at
7:30 + 30 + 60 + 15 = 9:15 AM