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30 May, 11:05

To get to the other side of the lake, one can drive around it on Lake Road, go over the bridge or ride the ferry. How many different ways can one go across the lake and back?

5,6,9

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  1. 30 May, 14:30
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    The answer is 9, here are all the possible combinations ...

    road, road

    road, bridge

    road, ferry

    bridge, bridge

    bridge, ferry

    bridge, road

    ferry, ferry

    ferry, bridge

    ferry, boat

    (or you can do 3 input combinations by 3 output combinations "3 x 3" = 9)

    Cheers!
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