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Bus A and Bus B leave the bus depot at 7 am.
Bus A takes 25 minutes to complete its route once and bus B takes 40 minutes to complete its route once.
If both buses continue to repeat their route, at what time will they be back at the bus depot together?
Assume the buses have no breaks in between routes.
Give your answer as a 12-hour clock time.

 Sep 8, 2022
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LCM[25, 40] ==200 minutes after 7:00 am

 

200 / 60 ==3 + 1/3 hours after 7:00 am

 

7:00 + 3 1/3 ==10:20 am - when both buses will depart the dpot at the same time.

 Sep 9, 2022

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