You are given two (unmarked) containers of capacity 9 litres and 4 litres and a huge tank of water. ….

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You are given two (unmarked) containers of capacity 9 litres and 4 litres and a huge tank of water. You need to get a measure of exactly 6 litres of water. A move will either fill a container completely or empty a container (either fully or partly). What is the smallest number of moves needed to do this task?

Options :-

1. 8
2. 10
3. 12
4. None of these

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