2011-03-05, 12:34 PM
I asked a very similar problem here once too, it's like a page or 2 back on a thread:
Quote:A number of tokens (Red, white and blue) is given among 100 people. 45 people get red tokens, 45 receive white tokens and 60 people get blue ones. 15 people get Red and white, 25 get blue and white, 20 people get red and blue and 5 people get of every color. How many people are left without any tokens?The simplest way to get it seemed to be a venn diagram. (circles that contain eachother)

