probability

Stuart@KaplanGMAT: GMAT Instructor; Posts: 3225; Joined: Tue Jan 08, 2008 2:40 pm; Location: Toronto; Thanked: 1710 times; Followed by:614 members; GMAT Score:800

by Stuart@KaplanGMAT » Tue May 26, 2009 9:52 am

Probability = (# of desired outcomes)/(total # of possibilities)

In this question, we have 25 red blocks and 300 total blocks.

So, the probability of choosing a red block = 25/300 = 1/12.

Stuart Kovinsky | Kaplan GMAT Faculty | Toronto

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ST: Master | Next Rank: 500 Posts; Posts: 191; Joined: Sat Feb 14, 2009 11:56 am; Thanked: 1 times

Thank you

by ST » Tue May 26, 2009 10:01 am

Thank you

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