Mathematics, 02.07.2019 22:30 lillianradecki

Agroup of four people has to cross a bridge. it is dark, and they have to light the path with a flashlight. no more than two people can cross the bridge simultaneously, and the group has only one flashlight. it takes different time for the people in the group to cross the bridge: chris crosses the bridge in 1 minute, tracy crosses the bridge in 2 minutes, ashley crosses the bridge in 5 minutes, jalen crosses the bridge in 10 minutes. how can the group cross the bridge in 17 minutes?

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Agroup of four people has to cross a bridge. it is dark, and they have to light the path with a flas...