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Mathematics, 07.04.2020 22:38 laurabwhiddon

At the flower show, one trolley arrives every 4 minutes to take people to the rose pavilion. Another trolley arrives every 10 minutes to take people to the exotic flower greenhouse. Both trollies just arrived at the main building. How many minutes from now will be the next time the trollies arrive at the main building together?
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At the flower show, one trolley arrives every 4 minutes to take people to the rose pavilion. Another...
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