U have 2 bottles of 5litre and 3litre,and u r selling water,i came to u to buy exactly 4 litres ..?

Question

please help me girlfriend is driving me mental,

Answer 1

1. Fill the 3-litre bottle completely
2. Dump the contents of the 3-litre bottle into the 5-litre bottle.
3. Fill the 3-litre bottle completely again.
4. Dump what you can from the 3-litre bottle into the 5-litre bottle until it's full.
5. This leaves you with 1 litre of liquid still in the 3-litre bottle.
6. Throw away the contents inside the 5-litre bottle and transfer the remaining contents of the 3-litre bottle back into the 5-litre bottle. This gives you 1 litre of liquid inside the 5-litre bottle.
7. Refill the 3-litre bottle.
8. Since you have 1 litre already in the 5-litre bottle, transfer the entire contents from the now filled 3-litre bottle into the 5-litre bottle will give you a total of 4 litres.

Or

1. Fill the 5-litre bottle completely and transfer what you can into the 3-litre bottle. This will give you 2 litres of what still in the 5-litre bottle.
2. Dump the liquid in the 3-litre bottle and transfer the 2 litres from the 5-litre bottle to the 3-litre bottle.
3. Refill the 5-litre bottle completely.
4. Transfer what you can from the 5-litre to the 3-litre. Now, since you already have 2 litres in the 3-litre bottle, you can only transfer 1 litre from the 5-litre bottle, leaving you with 4 litres in the 5-litre bottle.

Answer 2

Fill the 5 l bottle and pour into the 3 l until it is full. There will be 2 l pf water left in the 5 l bottle.
Then empty the 3 l bottle, and transfer the 2 l of water from the 5 l bottle into the 3 l one. The 3 l bottle now contains 2 l of water. Now fill the 5 l to capacity and use it to fill the 3 l bottle to the top, this means transfer 1 l of water to the 3 l, therefore, there is now 4 l of water in the 5 l bottle.
Done.

(What does this have to do with your girlfriend?)

Answer 3

Fill the 5, poor into the 3, that leaves 2 in the five, dump the 3 out, poor the 2 from the 5 in the 3, fill the 5 all of the way up, poor from the 5 into the 3 until the 3 is full, this will leave 4 in the 5

Answer 4

Fill the 3 litre bottle with water and pour into one of the 5 litre bottles. Fill the 3 litre bottle again and pour as much as you can into the partially filled 5 litre bottle. That would leave 1 litre of water in that 3 litre bottle of water. Take the other 3 litre bottle and fill it with water. The two 3 litre bottles would now have a total of 4 litres of water. One with 1 litre and one with 3 litres.

Answer 5

- Fill up the 5-litre bottle with water
- Pour the contents of it into the 3-litre bottle until that 3-litre bottle is full. You now have two litres remaining in the 5-litre bottle.
- Empty the 3-litre bottle onto the ground. Dump the two litres in the 5-litre bottle into the empty 3-litre bottle. Your 5-litre bottle is now empty, and your 3-litre bottle now has two litres of water in it.
- Fill up your 5-litre bottle with water. Start dumping it into the 3-litre bottle. The 3-litre bottle fills up leaving four litres in the bigger bottle.

(On a side note, I thought girlfriends drive men mental when they RETAIN water, not ask for 4 litres of it!)

Answer 6

1) From the tap, fill the 5L bottle.
2) From the 5l bottle, fill the 3L bottle. You now have 2L in the 5L bottle.
3) Empty the 3L bottle.
4) Pour the remaining 2L (from the 5L bottle) into the 3L bottle.
5) Fill the 5L bottle from the tap.
6) From the 5L bottle, top up the 3L bottle (which still has 2L of water). This will take 1L from the 5L bottle, leaving it with 4L of water.

This solution basically comes from the fact that 4 = 5 + 5 - 3 - 3. You fill the 5L bottle twice and use the 3L bottle to measure 6L to throw away.

Answer 7

If u come to me to buy 4 litres of water i will get a bottle which could hold exactly 4 litres of water and then i will pour it down from the 5 litre on that's it

if that doesn't work get a one litre bottle and pour one litre from 5 litre bottle and then it's 4 litre that's it done

Answer 8

fill the 3 L bottle..pour into the 5L... fill it .. pour into the 5L until full... leaving One litre in the 3 L bottle... empty the 5L bottle... pour the one L in the3 L bottle into the 5 L bottle and add another 3 litres to the 5L... viola .. 4 litres

Answer 9

fill 5 liter bottle, pour from it into 3-liter, whatever is left is 2 liters, give them to buyer and repeat the process.

If buyer has no container of his own:
fill 5 from source
fill 3 from 5 (leaving 2 in 5)
empty 3,
pour remaining 2 from 5 into 3
fill 5 from source
fill 3 from 5: 3 had 2 in it, so it can only take 1, leaving 4 in 5

Answer 10

You need to watch "Die Hard with a Vengeance". Bruce Willis and Samuel L. Jackson solve this exact puzzle. My guess is that nothing will blow up if YOU get this wrong!