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?

Answer 1

AnswerThere are three ways to do this.

Method 1

Step 1 : Fill the 5 gallon jug and then pour it into the 3 gallon jug. The 5 gallon jug has

2 gallons left.

Step 2 : Now throw the 3 gallon water away. Pour the 2 gallons from the 5 gallon jug to the 3 gallon jug. So now the 3 gallon jug has just 2 gallons of water.

Step 3 : Fill the 5 gallon jug again, and pour 1 gallon to the 3 gallon jug. What do u have left in the 5 gallon jug ?? 4 gallons of water.. !

Method 2

Next to each step, the current contents (in gallons of water) of the two jugs (5 gallon first, then 3 gallon) is written.

• 5 0 Fill the 5 gallon jug.
• 2 3 Pour 3 gallons into the other jug, leaving 2 gallons.
• 2 0 Empty the 3 gallon jug.
• 0 2 Pour the 2 gallons from the 5 gallon jug into the 3 gallon jug.
• 5 2 Fill the 5 gallon jug again.
• 4 3 Top up the 3 gallon jug from the 5 gallon jug, leaving 4 gallons in the 5 gallon jug.

Method 3You fill the three gallon jug and then pour it into the five gallon jug. Then you fill it again and pour it in the five gallon jug, leaving one gallon in the three gallon jug. Then you pour out the five gallon jug, pour the one gallon from the three gallon jug into the five gallon jug, then you fill the three gallon jug, pour it into the five gallon jug, leaving four gallons in the five gallon jug.

P.S Who designed that annoying bomb you're trying to defuse?