PS 24,4

A shipment of 8 television sets contains 2 black-and-white sets and 6color sets. If 2 television sets are to be chosen at random from this shipment, what is the probability that at least 1 of the 2 sets chosen will be a black-and-white set?

A. 1/7

B. 1/4

C. 5/14

D. 11/28

E. 13/26

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GHCV tagged this post with: GMAT Question of the Day Read 54 articles by GHCV

1. Ankur Chawla says:

   October 27, 2007 at 2:11 pm

   Take Gmat team, are you sure these are the right options???

   Cos my ans comes out to be 13/28

   Pls confirm the same……..

   Thankq
2. jabezfu says:

   October 30, 2007 at 10:43 pm

   I agree with Ankur Chawla.

   I also got 13/28.

   Thank you.
3. Vibz says:

   November 1, 2007 at 3:50 am

   That’s right… 13/28.
4. GHCV says:

   November 3, 2007 at 9:24 am

   Sorry for this situation. I´ll check it. Thanks
5. uday says:

   August 15, 2008 at 4:30 pm

   yup..i got 13/28 as well…

   the calc goes as shown
   6/8*2/7 + 2/8*6/7 + 2/8*2/7
   = 13/28
6. duke says:

   September 20, 2008 at 3:05 am

   Easier way..
   1- (6/8*5/7)
7. Tapas says:

   December 4, 2008 at 4:36 pm

   13/28