Questions about the world of GMAT Math from other sources and general math related questions.
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Paper Test 37 #24

by Guest Sat Sep 15, 2007 12:57 pm

There are 50 socks in a bag: 20 black, 20 brown, 4 gray, 6 white. If one sock is picked, what is the probability of picking two socks of the same color?
A. 1/2
B. 1/4
C. 1/3
D. 1/6
E. 1/8
shaji
 
 

Re: Paper Test 37 #24

by shaji Sun Sep 16, 2007 2:31 am

Ambiguous question!. Please check wording. 1 sock is picked and the probability of picking two is nill.

Anonymous Wrote:There are 50 socks in a bag: 20 black, 20 brown, 4 gray, 6 white. If one sock is picked, what is the probability of picking two socks of the same color?
A. 1/2
B. 1/4
C. 1/3
D. 1/6
E. 1/8
Guest
 
 

by Guest Mon Sep 17, 2007 1:17 pm

That's the correct wording.
RonPurewal
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by RonPurewal Tue Sep 18, 2007 3:44 am

Yeah, I'm not quite sure what this problem is asking. It could mean one of at least 3 things:
1. If one sock is selected at random, what is the chance that the next sock selected will be of the same color?
2. If one sock is selected at random, what is the chance that the next two socks selected are the same color as the first one?
3. If one sock is removed, what is the chance that two socks selected from the remaining socks will match?
Etc.

Can't really answer it the way it's written right now... :[[/i]
Guest
 
 

by Guest Tue Sep 18, 2007 11:37 am

1. If one sock is selected at random, what is the chance that the next sock selected will be of the same color? I think that is what it is asking. Ron, please comment. Thanks!


dadecountyexpress@gmail.c Wrote:Yeah, I'm not quite sure what this problem is asking. It could mean one of at least 3 things:
1. If one sock is selected at random, what is the chance that the next sock selected will be of the same color?
2. If one sock is selected at random, what is the chance that the next two socks selected are the same color as the first one?
3. If one sock is removed, what is the chance that two socks selected from the remaining socks will match?
Etc.

Can't really answer it the way it's written right now... :[[/i]
Guest
 
 

by Guest Mon Apr 07, 2008 1:50 pm

How would one solve this question?

The chance of picking a black sock 1/50, then picking another black sock 19/49.
Hmm, stumped!??