you have a 3 gallon and a 5 gallon jug....

you have a 5 gallon jug and a 3 gallon jug. you also have an infinite supply of water. explain the steps need to get 4 gallons of water into the 5 gallon jug. And you must have EXACTLY 4 gallons.

Originally posted by TDR1
you have a 5 gallon jug and a 3 gallon jug. you also have an infinite supply of water. explain the steps need to get 4 gallons of water into the 5 gallon jug. And you must have EXACTLY 4 gallons.

Not too hard:
1. Fill the 3 gallon jug and pour into the 5 gallon jug.
2. Fill the 3 gallon jug again and pour into the 5 gallon jug until full.
(You now have exactly one gallon in the 3 gallon jug)
3. Empty the 5 gallon jug and pour the 1 gallon from the 3 gallon jug to the 5 gallon jug.
4. Fill the 3 gal jug and pour into the 5 gallon jug
You now have exactly 4 gallons in the 5 gallon jug.🙂

Hey! no fair posting while I was typing. 😛

well done ...both of you

One other way (wastes less water):
Fill the 5g jug and pour into the 3, leaving 2 in 5
empty the 3g jug
pour the 2g from the 5 jug to the 3 jug
fill the 5 jug
fill the 3 jug from the five jug, this takes 1 gallon leaving 4 gallons in the five jug

1)completely fill 5g jug
2)pour contents into 3g jug until overflows (2g will be left in 5g jug)
3)empty 3g jug
4)pour contents (2g) of 5g jug into 3g jug
5)fill 5g jug until overflows
6)use contents of 5g jug to fill 3g jug until overflows (4g left in 5g jug)

thats the way i was thinking....iamatiger

same here - just like in Die Hard 2 or something.

really??? is it in die hard 2???..i havent seen either of them in a while....

Originally posted by TDR1
really??? is it in die hard 2???..i havent seen either of them in a while....

Trade the full 3 gallon jug for an empty four gallon one.

If you look closely at the 5g jug, it has measurements up the side. Use these to fill it up to 4g 😛