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Red ball... Red ball (Posted on 2002-10-17) Difficulty: 4 of 5
If you take two balls randomly out of a jar of colored balls, there is a 50% chance that the balls will both be red.

What is the total percentage of red balls in the jar?

See The Solution Submitted by levik    
Rating: 3.1538 (13 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
(easy) Solution | Comment 8 of 15 |
There are 4 balls. 3 are red. Easy.
  Posted by Chaz on 2003-05-03 14:41:37
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