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The exact number would depend on the shape of the container and how the pennies packed in, but assuming that you are referring to US Coins and US gallons (as versus Imperial Gallons), I'd estimate the answer to be that about 20,000 pennies can fit in a 3 gallon container.

Calculation is as follows:

1 US gallon = 0.133680556 cubic feet

1 US penny has a diameter of 0.75 inches and a thickness of 0.061 inches

The most efficient pack would be if the pennies were stacked in columns and if those columns were pressed so that each column touched six others. But lets assume that the coins were just poured in, and so packed more like columns on a grid (i.e., each column touches four others). This means that each penny takes up 0.75*0.75*0.061=0.0343125 cubic inches of space (including its actual volume and its estimated share of the dead space in the container. This equates to 0.0000198568 cubic feet, meaning that 0.133680556/0.0000198568 = 6732.24 can fit in a gallon. 6732.24 times 3 is 20,196.72; thus my estimate of about 20,000.

Note that if you were prepared to melt the pennies so as to fit more into the container (i.e., no dead space), the volume that you would use for each penny is ((0.75/2)^2)*PI*0.061, allowing you to fit 8571.754788 melted pennies into each gallon, or 25715.26436 in a three gallon container. This would, however, make it very difficult to cash the pennies in at the bank later!

Q: How many pennies in a 3 gallon container?

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Notation: ( x , y ) where x is the amount of water in the 3-gallon container and y is the amount of water in the 5-gallon container1. Fill the three-gallon container ( 3 , 0 )2. Pour the three gallons into the 5-gallon container ( 0 , 3 )3. Fill the three-gallon container ( 3 , 3 )4. Fill the five-gallon container with the three-gallon container, leaving 1 gallon in the three gallon container ( 1 , 5 )5. Pour out the water from the five-gallon container ( 1 , 0 )6. Pour the water from the three-gallon container into the five-gallon container ( 0 , 1 )7. Fill the three-gallon container ( 3 , 1 )8. Pour the water from the three-gallon container into the five-gallon container ( 0 , 4 )Another great answer here:[See below for the related link]

fill 3 gallon container with juice and poor into 5 gallon container you now have 3 gallons in he container. now refil the 3 gallon container and fill the 5 gallon the rest of the way. now you have used up 2 gallons filling the 5 gallon container and you have 1 gallon left in the 3 gallon container.

Assuming you don't use fractions of the containers: You could fill the 5 gallon container and then decant it into the 4 gallon container until full leaving 1 gallon left in the 5 gallon container. Empty this into another container, repeat the process 2 more times and combine the 3 one gallon containers to make 3 gallons in one.

3 trillion pennies make 3 trillion pennies. 300 trillion pennies make 3 trillion dollars.

First, fill up the 5 gallon bucket. Then, pour the contents in the 5 gallon bucket into the 3 gallon bucket. This leaves 2 gallons left in the 5 gallon bucket. Pour the 2 gallons into the 3rd container. Now, fill the 5 gallon bucket again and pour the full 5 gallons into the 3rd container. This gives you 7 gallons.

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An Estimated 20,000 pennies=$200.00

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.

Approximately 7,500 pennies could fit in a three gallon jug.

1. Fill the 2 gallon container with water. 2. Pour all the water in the 2 gallon container into the 3 gallon container. 3. Refill the 2 gallon container 4. Fill the 3 gallon container the rest of the way with the 2 gallon container. You will have 1 gallon left in the 2 gallon container without using the 5 gallon container. P.S Whose bomb are you trying to defuse?

Notation: ( x , y ) where x is the amount of water in the 3-gallon container and y is the amount of water in the 5-gallon container1. Fill the three-gallon container ( 3 , 0 )2. Pour the three gallons into the 5-gallon container ( 0 , 3 )3. Fill the three-gallon container ( 3 , 3 )4. Fill the five-gallon container with the three-gallon container, leaving 1 gallon in the three gallon container ( 1 , 5 )5. Pour out the water from the five-gallon container ( 1 , 0 )6. Pour the water from the three-gallon container into the five-gallon container ( 0 , 1 )7. Fill the three-gallon container ( 3 , 1 )8. Pour the water from the three-gallon container into the five-gallon container ( 0 , 4 )Another great answer here:[See below for the related link]

fill 3 gallon container with juice and poor into 5 gallon container you now have 3 gallons in he container. now refil the 3 gallon container and fill the 5 gallon the rest of the way. now you have used up 2 gallons filling the 5 gallon container and you have 1 gallon left in the 3 gallon container.

Use the 3gallon container to fill the 5gallon container once the 5gallon container is full you should be left with one gallon in the 3 gallon container.

you fill the 3 gallon up then put it in the 5 gallon then fill the 3 gallon up again and poor as much as u can in the 5 gallon then u will be left with 1 gallon in the 3 gallon bucket

It is impossible to measure out exactly 1 gallon into a 4 gallon container, unless the container has appropriate markings for measurement. However, if you had a 2nd container available, it may be possible to derive a 1 gallon measurement. Assuming a 2nd container of size: 1 Gallon: Just use the 2nd container 2 Gallon: Impossible 3 Gallon: Fill the 4 gallon container completely, then pour it into the 3 gallon container until full. You should have exactly 1 gallon left in the 4 gallon container. 4 Gallon: Impossible 5 Gallon: Fill the 5 gallon container until it is full, then dump it's contents into the 4 gallon container, leaving exactly 1 gallon left in the 5 gallon container. 6 Gallon: Impossible 7 Gallon: Fill the 4 gallon container completely, then empty it's contents into the 7 gallon container. Repeat this process, and when the 7 gallon container is full, there should be exactly 1 gallon left in the 4 gallon container. 8 Gallon: Impossible 9 Gallon: Fill the 9 gallon container completely, then use it to fill the 4 gallon container. Once the 4 gallon container is full, empty it and repeat. After pouring from the 9 gallon container twice, you will end up with exactly 1 gallon left. 10 Gallon: Impossible This pattern repeats for all containers that satisfy the following equations: C*n+1 C*n-1 Where C is the size of the original container (4 in this case), and n is all whole numbers greater than 0. The only additional case would be a 2nd container size of 1.

Assuming you don't use fractions of the containers: You could fill the 5 gallon container and then decant it into the 4 gallon container until full leaving 1 gallon left in the 5 gallon container. Empty this into another container, repeat the process 2 more times and combine the 3 one gallon containers to make 3 gallons in one.

3 trillion pennies make 3 trillion pennies. 300 trillion pennies make 3 trillion dollars.

First, fill up the 5 gallon bucket. Then, pour the contents in the 5 gallon bucket into the 3 gallon bucket. This leaves 2 gallons left in the 5 gallon bucket. Pour the 2 gallons into the 3rd container. Now, fill the 5 gallon bucket again and pour the full 5 gallons into the 3rd container. This gives you 7 gallons.