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Fill the 5 gallon can

Empty it into the 3 gallon can....you now have 2 gallons left in the 5 gallon can

Empty the 3 gallon can

Pour the 2 gallons from the 5 gallon can into the 3 gallon can.

Fill the 5 gallon can

Pour water from the 5 gallon can into the 3 gallon can until it is full....that will take a further gallon.

You now have 4 gallons left in the 5 gallon can.

Empty 1 of the 5 gallons.

(But how do you know when you have emptied 1 gal???)

You fill the 3 gal can and then tip it into the 5 gal can.

The fill the 3 gal can again and tip some into the 5 gal can until the 5 gal can is full, you should now have 1 gal in the 3 gal can.

Now empty the 5 gal can and put the 1 gal (from the 3 gal can) into the 5 gal can. Fill the 3 gal can again and add that to the 1 gal that is in the 5 gal can. You now have 4 gals in the 5 gal can!

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13y ago
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9y ago

1. Add 4 gallons

2. Remove 3 gallons

3. Add 4 gallons

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Q: How do you get 4 gallons with a 3 gallon can and a 5 gallon can?
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How can you measure exactly 5 gallons only using 2 containers that are 3 gallons and 4 gallons?

1. Completely fill the 4 gallon container. 2. Pour 3 of the 4 gallons into the 3 gallon container, leaving 1 gallon in the 4 gallon container. 3. Empty the 3 gallon container and pour the 1 remaining gallon from the 4 gallon container into the 3 gallon container. 4. Fill the 4 gallon container. Now you have a total of 5 gallons, 4 in the 4 gallon container and 1 in the 3 gallon.


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If you have a three gallon jug and a five gallon jug No marks on either one The goal is to fill the five gallon jug with four gallons of water How is this accomplished?

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