You have a five cup mug, a three cup mug, a water supply, a sink with a drain, and a packet of instant coffee which when dissolved in one cup of water produces coffee of strength 100%.

The packet may be used at any time, but the entire contents of the packet must be dissolved into a single mug when it is used.

Your task is to fix 4 cups of coffee at exactly 16% strength.

(In reply to ummm.... by Thalamus)

ummm... doesn't the 4 cups of coffee has to be 16%, not 64%? You know...   5   (16%)      ?   (?)

Posted by ron on 2004-12-30 03:55:49