You have 3 unmarked pitchers that hold 6 cups, 10 cups, and 15 cups. The 10 cup pitcher is filled with lemonade, but you have to dilute it so people at the party don't complain that it's too sour. Unfortunately, I have, in the name of logic, broken your only measuring cup.

How can you dilute the lemonade to 20 cups such that all of the lemonade is of equal concentration? You have a sink with unlimited water, but you can't waste any lemonade. Try using as few moves as possible.

(In reply to solution (I think it's the most efficient) by Libby)

Problem with that is, the concentration is not equal..there is really one one solution...read my post to see it.

Posted by Why on 2006-10-17 09:43:21