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.

ok here ya go.........10 cup pitcher has lemonade

Move 1. empty 1/2 lemonade from 10c  into 15c

Move 2. fill 10c rest of the way with water.

Move 3. fill 15c 2/3;s way with water.

Stir, serve chilled, enjoy

 

Posted by j on 2006-02-19 18:21:11