I am going on a trip with a lion, a goat and a box of grass – enough to last my goat for three day.


The goat could finish all the grass at a time if I leave him alone with the box of grass. Hence the

goat and the box of grass must not be alone – not without my presence.

Also, The lion would eat the goat if I leave him alone with the goat – Hence, the lion and the goat must not be alone -not without my presence

Problem:  Then I got to a river which I must walk through to get to the other side. Unfortunately, my three subordinates are too heavy to carry to other side –  I can only carry each one at a time to the other side. How should I take them – one per each trip to the other side in such a way that the rule is maintained on both sides of the river?

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