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Originally Posted by zoombini
Okidoki 8 ball bearings, one of which is slightly different from the rest.
You cannot visually see the difference its only in its weight.
You do not know if its heavier or lighter.
You have a pair of balance scales, you are only allowed to make 3 balance tests.
How do you tell which is the odd bearing?
Something else thats being discussed in the office. 
Quick replies wanted so I can be the one to answer it  |
This is an OLD,OLD Problem
Big hint here : Start with weighing 2 vs 2
Full answer here
http://www.mathnerds.com/mathnerds/b...t/solution.asp