Tech Interview

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    • 25 Sep 2016

      Three People on a Weak Bridge

      Posted at 12:19 am by Keisha l, on September 25, 2016

      Three people need to cross a weak bridge at night. They have just one turn and the bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 2 min, 5 mins and 7 mins. What is the shortest time for all three of them to cross the bridge?

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