Crossing the Bridge Answers


The solution for this problem is as follows:

    Bono and Edge Cross: 2 minutes
    Bono returns: 1 minute (Sum = 3 minutes)
    Larry and Adam Cross: 10 minutes (Sum = 13 minutes)
    Edge returns: 2 minutes (Sum = 15 minutes)
    Bono and Edge Cross:    2 minutes (Sum = 17 minutes)

A second solution is:

    Bono and Edge Cross: 2 minutes
    Edge returns: 2 minutes (Sum = 4 minutes)
    Larry and Adam Cross: 10 minutes (Sum = 14 minutes)
    Bono returns: 1 minute (Sum = 15 minutes)
    Bono and Edge Cross: 2 minutes (Sum = 17 minutes)