Puzzles
Frogs
Source: nrich
Two frogs and two toads are standing on five lily pads.
![](javascript:showlimage("frogs-and-toads.png"))
The frogs and toads need to pass each other. They can only move by jumping one or two lily pads forward. In jumping two pads forwards they can jump over other frogs or toads.
How many jumps need to be made to get the frogs and toads past each other?
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