four litre water

This is an easy one

Puzzle : You infinite supply of water and two containers, one 3 liters and other of 5 liters, how would you measure 4 liters?

solution ==>

simply

1) fill the three litre jar

2) empty it in 5 litre jar

3) again fill 3 litre jar and empty it in 5 litre jar, you have 1 ltr left in 3 ltr jar

4) empty 5 litre jar and pour that one litre from 3 ltr jar into it , so now our 5 ltr jar is containing 1 ltr water

5) again fill 3 ltr jar and pour it into the 5 ltr jar.

6) you have 4 ltr of water in 5 ltr jar .

7) the end ....