There are 4 water jug – A, B, C and D.
One can fill 3 litres in A, 4 litres in B, 5 litres in C and 5 litres in D. Container A and B are given to you empty and C and D are fully filled with water.
What you have to do is fill the water jug A, B, C and D with ascending or descending order.
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