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Bus A and Bus B leave the bus depot at 7 am. Bus A takes 25 minutes to do its route and bus B takes 40 minutes to complete its route. At what time are they both back at the bus depot together? Give your answer as a 12-hour clock time.

Jul 28, 2020

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Accidentally, as written, the problem does not have sufficient information to give a proper answer without making assumptions about information not actually given in the problem.

For example, did both buses return to the depot AFTER they “completed” their routes, or did one or both of them go somewhere else after their respective route completions? (e.g. did one or both go to a gas station to refill the gas tank, or perhaps to a repair shop, etc.)

To answer the question as stated we would have to “assume” (and we all know what that means) that they both returned to the depot after their route AND remained there until at least the other one got back.

Now, IF that assumption is correct, then they would both be at the depot again at 8:35 am.

If thats not right then its 10:55

Jul 28, 2020