Given two buckets of 4 liter and 7 liter capacity respectively and you are having unlimited supply of water. measure 5 liter of water using these two buckets.
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First fill 7 liter bucket , then fill 4 liter bucket from 7 liter bucket
now 4 liter bucket is fill and 7 lier bucket has 3 liter. empty the 4 liter bucket and put the remaining 3 liter in it
fill the 7 liter bucket again and fill the remaining 4 liter bucket from 7 liter bucket and then empty the 4 liter bucket
now 4 liter bucket is empty and 7 liter bucket has 6 liter
once again fill the 4 liter bucket from 7 liter bucket and empty the 4 liter bucket
now 7 liter bucket has 2 liter
now put the 2 liter in 4 liter bucket and fill the 7 liter bucket
now at last fill the remaining space in 4 liter bucket from the 7 liter bucket
Now you get 5 liter water in 7 liter bucket
now 4 liter bucket is fill and 7 lier bucket has 3 liter. empty the 4 liter bucket and put the remaining 3 liter in it
fill the 7 liter bucket again and fill the remaining 4 liter bucket from 7 liter bucket and then empty the 4 liter bucket
now 4 liter bucket is empty and 7 liter bucket has 6 liter
once again fill the 4 liter bucket from 7 liter bucket and empty the 4 liter bucket
now 7 liter bucket has 2 liter
now put the 2 liter in 4 liter bucket and fill the 7 liter bucket
now at last fill the remaining space in 4 liter bucket from the 7 liter bucket
Now you get 5 liter water in 7 liter bucket
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