Famous Google interview question!
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You have a 3 litre jug and 5 litre jug, how do you measure out exactly 4 litre?
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QUESTION -->[what is the minimum times you fill 3 litre and 5 litre jug from any water resource(tank) ]
- * re-posted problem* ,not genuine problem.
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1 solution
- NUMBER 1 - First fill the 3 litre jug.
Then pour the 3 litres into the 5 litre jug.
Now the 3 litre jug is empty, and the 5 litre jug has 3 litres in it.
Fill the 3 litre jug again. Slowly pour into the 5 litre jug. Only 2 litres will fit because it already has 3. Now it’s full.
Exactly 1 litre is left in the 3 litre jug.
Dump out the 5 litre jug.
Pour your 1 litre into the 5 litre jug.
Fill up the 3 litre jug one more time and pour it into the 5 litre jug! You have exactly 4 litres (and possibly a job at Google)
NUMBER 2