Question #143787

Each of the four persons can cross the bridge at a different time, namely 3, 7, 13, and 17 minutes, respectively. Only two people can cross at a time. What is the minimum time in which all four can cross the bridge?


Options:

Tags: Math
Answer: Each of the four persons can cross the bridge at a different time, namely 3, 7, 13, and 17 minutes, respectively. Only two people can cross at a time. What is the minimum time in which all four can cross the bridge 20.

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Question #143787

Each of the four persons can cross the bridge at a different time, namely 3, 7, 13, and 17 minutes, respectively. Only two people can cross at a time. What is the minimum time in which all four can cross the bridge?


Options:

Tags: Math
Answer: Each of the four persons can cross the bridge at a different time, namely 3, 7, 13, and 17 minutes, respectively. Only two people can cross at a time. What is the minimum time in which all four can cross the bridge 20.
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