MEASURE CAREFULLY
You have infinite supply of water. You also have 5 quart and 3 quart buckets. What is the least number of steps you will require to measure precisely 4 quarts?
Fill the 3 quart bucket (5 quart bucket has 0 quarts and 3 quart bucket has 3 quarts)
Pour it entirely in the 5 quart bucket (5 quart bucket has 3 quarts and 3 quart bucket has 0 quarts)
Fill the 3 quart bucket (5 quart bucket has 3 quarts and 3 quart bucket has 3 quarts)
Pour the contents to fill the 5 quart bucket (5 quart bucket has 5 quarts and 3 quart bucket has 1 quart)
Empty down the 5 quart bucket (5 quart bucket has 0 quarts and 3 quart bucket has 1 quart)
Pour the water from 1 quart bucket to 5 quart bucket (5 quart bucket has 1 quart and 3 quart bucket has 0 quart)
Fill the 3 quart bucket (5 quart bucket has 1 quart and 3 quart bucket has 3 quarts)
Pour the contents from 3 quart bucket to 5 quart bucket (5 quart bucket has 4 quarts and 3 quart bucket has 0 quarts)
We are done and it took us eight steps to measure exactly 4 quarts of water.
Your Answer
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