Puzzle Answer #2
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3-Pint Glass |
5-Pint Glass |
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| Step 1: | Fill the 5-pint glass. | 0 | 5 | |
| Step 2: | Fill the 3-pint glass from the 5-pint glass so that there is only 2 pints of beer left in the 5-pint glass. | 3 | 2 | |
| Step 3: | Empty the 3-pint glass. | 0 | 2 | |
| Step 4: | Fill the 3-pint glass with the rest of the 2 pints of beer from the 5-pint glass so that the 5-pint glass becomes empty. | 2 | 0 | |
| Step 5: | With unlimited supply of beer, fill the 5-pint glass again. | 2 | 5 | |
| Step 6: | Fill the 3-pint glass full from the 5-pint glass so that there are 3 pints of beer in the 3-pint glass and only 4 pints of beer in the 5-pint glass. In this case, you can give exactly 4 pints of beer to the customer. | 3 | 4 | |
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