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Q: How to measure 7 liters of water if you only have one 3 liter bucket and one 5 liter bucket with a steady flow of water?

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# Fill the 5 liter bucket # Pour it into the 7 liter bucket # Fill the 5 liter bucket # Fill the 7 liter bucket from the 5 (2 liters go in leaving 3 liters in the 5 liter bucket) # Empty the 7 liter bucket # Pour the 3 liters from the 5 liter bucket into the 7 liter bucket # Fill the 5 liter bucket # Fill the 7 liter bucket from the 5 liter bucket (4 liters go in leaving 1 liter in the 5 liter bucket) # Empty the 7 liter bucket # Pour the 1 liter form the 5 liter bucket into the 7 liter bucket # fill the 5 liter bucket. You now have 5 liters in the 5 liter bucket and 1 liter in the 7 liter bucket; 6 liters in all. Pour the 5 liters into the 7 liter bucket if you want all 6 liters in one container.

Fill the 3 liter bucket, then dump it into the 7 liter bucket. Do it again, so that now you have 6 liters in the 7 liter bucket. Then fill the 3 liter bucket, and pour it into the 7 liter bucket so that you have exactly 7 liters in the 7 liter bucket. You should have 2 liters left in the 3 liter bucket................if all that made sense :P

This method works with any such problem, as long as the two buckets' liter-capacities (or gallon capacities, etc.) have no common factors, or else the common factors are also factors of the amount you're trying to measure. Fill the 7-liter bucket, and empty 5 liters of it into the 5-liter bucket; then dump out the 5 liters. Two liters will remain in the 7-liter bucket; transfer them to the 5-liter bucket. Fill the 7-liter bucket again, and empty enough of the bucket into the 5-liter bucket to fill it. That should only be 3 liters transfered, leaving 4 liters left in the 7-liter bucket. QED.

Fill up 8 liter bucket and 5 liter bucket. Pour 3 liter out from the 5. Pour 6 liter from the 8. Add the remains from the 5l back to the remains in the 8 liter and you have 4 liters.

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You could fill the 7-liter bucket and pour water into the aquarium until it is full, but that would make too much sense. If you really need to have three liters, fill the 7-liter bucket (which, although unmarked, will be larger than the 4-liter bucket) and pour it into the 4-liter bucket. When the 4-liter bucket is full, there will be three liters remaining in the 7-liter bucket.

pour out one litre from 5L bucket :D LOL

1)take 3liters frm 8liter bucket 2)pour thees 3 liters to the 5 liter bucket 3)take 3 liter from 8liter buket using 3 liter buket 4)pour the water frm 3 liter buket to 5 liter buket till it fills 5)pour the 5liters to the 8liter bucket 6)so we have 1liter in 3liter buket & 7liters in 8 liter buket 7)pour the one litre to the 5liter buket 8)nw take 3 liters from 8liter buket using the 3 liter buket 9)so we have 4 liters in 8liter buket 10)pour the 3 liters from the 3liter bucket to the 5 liter buket hence solved

liters

Depends a great deal on the size of the bucket; but, as a general rule, close to 20.

since you're probably talking about the volume of water in the bucket, you could use either ml or liters (1 liter is 1000 ml), grams are a measure of weight and meters measure length.

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