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Problem 8 (Bridge Problem)

Four people come upon a bridge in the middle of the night. It is dark and they must use a flashlight to get across the bridge, but they only have one flashlight, and the bridge is so rickety that no more than two people an be on the bridge at the same time. One person (person can cross the bridge in 1 minute, the second person (person can cross the bridge in 2 minutes, the third person person can cross the bridge in 4 minutes, and the last person (person can cross the bridge in 10 minutes. Can the four people cross the bridge to the other side in 18 minutes or less ? If so, how ?

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Last modified on Tuesday, January 12, 1999