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Help Her Out (solve This) - Jokes Etc - Nairaland

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Help Her Out (solve This) by bidibudi: 10:40pm On Sep 04, 2007
A girl has just a 5 litre and a 3 litre keg for carrying water, but she needs exactly 4 litres of water from a nearby well. How is she going to get exactly 4 litres of water from the 3 litres and 5 litres kegs that she has with her.
Re: Help Her Out (solve This) by labiyemmy(m): 12:03am On Sep 05, 2007
not clear.
Re: Help Her Out (solve This) by Genial(m): 1:40pm On Sep 05, 2007
bidibudi:

A girl has just a 5 litre and a 3 litre keg for carrying water, but she needs exactly 4 litres of water from a nearby well. How is she going to get exactly 4 litres of water from the 3 litres and 5 litres kegs that she has with her.

My instructions to the girl:

1. Fill the 3-litre keg and empty it into the 5-litre keg.
2. Fill the 3-litre keg a second time and fill up the 5-litre keg, taking care to spill no water. You will have exactly 1 litre left in the 3-litre keg after this.
3. Empty the 5-litre keg.
4. Pour the 1-litre of water in the 3-litre keg into the 5-litre keg.
5. Fill the 3-litre keg and empty it into the 5-litre keg.
6. You now have 4 litres of water in the 5-litre keg.
7. To show your gratitude, cook me a good dinner.
8. End.
Re: Help Her Out (solve This) by Aiphie(f): 4:12pm On Sep 05, 2007
Genial got it again. Hmmm
Re: Help Her Out (solve This) by Migines(m): 5:13pm On Sep 05, 2007
Genial! RESPECT.
I figd it out as well but it tuk me some tym.
Re: Help Her Out (solve This) by Genial(m): 5:47pm On Sep 05, 2007
Thanks - Migines and Aiphie.

Actually, there is another solution.

1. Fill the 5-litre keg and use it to fill the 3-litre keg. You will have 2 litres left in the 5-litre keg.
2. Empty theĀ  3-litre keg and pour the 2 litres from the 5L keg into it.
3. Fill the 5L keg again and use it to fill the 3L keg.
4. You now have 4L left in the 5L keg.

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