17 Oct 2008 2:01
OK so here is the answer (to last Friday's puzzle) you have all been waiting for! You completely fill the 5 gallon jug. From the 5 gallon jug fill the 3 gallon jug leaving you with two gallons in the 5 gallon jug. Empty the 3 gallon jug and pour the two gallons into the 3 gallon jug. Refill the five gallon jug and pour what you can to fill the 3 gallon jug. You now have four gallons in the 5 gallon jug!! Hooray!
Well done to all those that got it right.
And for all you film buffs out there, this problem appeared in Die Hard With A Vengeance. Bruce Willis and Samuel L Jackson have about 2 minutes to solve this problem and place exactly 4 gallons onto a scale to defuse a bomb in a busy city centre. Definitely worth a watch to see how they get on.
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