Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Jun 1006:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
19 Jul 2006, 14:14
Kudos
Bookmarks
Hi,
Can someone help with this question ?
Thanks in advance.
Can someone help with this question ?
Thanks in advance.
--== Message from the GMAT Club Team ==--
THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.
If you would like to discuss this question please re-post it in the respective forum. Thank you!
To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.
If you would like to discuss this question please re-post it in the respective forum. Thank you!
To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Attachments
Math05.JPG [ 28.69 KiB | Viewed 1965 times ]
19 Jul 2006, 19:08
Kudos
Bookmarks
This can be explained as :
There are 60 sibling pairs, probability of picking a senior sibling is 60/1000. Only one out of the junior will make this a sibling pair, the probability of which is 1/800. So the combined probabilty is 60/1000 * 1/800 = 3/40000
There are 60 sibling pairs, probability of picking a senior sibling is 60/1000. Only one out of the junior will make this a sibling pair, the probability of which is 1/800. So the combined probabilty is 60/1000 * 1/800 = 3/40000
