You have nine pearls, one of which is (as is usually the case in these problems) fake. You know that the fake pearl weighs less than the others, but it is (of course) impossible to distinguish from the others in any other way.
What is the minimum number of weighings that must be performed to find the fake pearl? How would you go about it?
(In reply to
Solution by Jenny Turner)
OK, without looking at what anyone else has posted, I reckon it must be two weighings. Weigh
Why is it that you guys are posting answers without reading the answers already posted? I don't get it. It is so boneheaded rude and wasteful in my opinion. I read one answer and assumed that others had something meaningful to add, yet they were all posts like this, from people who hadn't taken the time to see if what they were going to write was already written.
Jason Taylor
Edited on August 20, 2005, 11:41 am
Edited on August 20, 2005, 11:42 am
re: Solution
