You have 4 weights weighing 2,3,5 and 7 pounds. The problem is none of them are marked. What is the fewest number of weighings you need using a balance scale figure out which weights are which?

...Which is more efficient: to do one extra weighing, or to write a complex program and perform hours of analysis to get it down to four ?

Just kidding. Good job, Charlie.

Posted by Penny on 2004-07-25 16:27:00