Mathematics, 21.09.2020 14:01, warreliz

Commuter trains depart from North Station every 10 minutes. Subway trains depart every 3 minutes. A subway train and a commuter train both leave the station at 8:15. How long will it be before the subway trains and the commuter trains depart again at the same time? What time will that be?

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Commuter trains depart from North Station every 10 minutes. Subway trains depart every 3 minutes. A...