Answer:
2/3 liter
Explanation:
We have given 8/9 liter of water and we use 2/3 of it.
The trick is that the answer is given in this question itself. We have used 2/3 of it.
You don't have to subtract 2/3 from 8/9 because in this case you will get what amount of water remains in the jug.
The correct answer is 2/3