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 0408:30 AM PDT
-09:30 AM PDT
For most test takers, Data Insights is the most challenging section on the GMAT, with test takers scoring several points lower on average on DI than on Quant or Verbal and completing the section with less time to spare.
May 2910:00 AM IST
-11:00 PM IST
Start your journey with a fully customized action plan and work with a dedicated mentor to achieve a 735+ score.- Jun 03
08:30 AM PDT
-09:30 AM PDT
In Episode 7 of our GMAT Ninja CR series, we are rounding up the oddballs, the misfits, and the format-benders: EXCEPT, Fill-In-The-Blanks, and other unusual Critical Reasoning question types. When you see a question that ends with a literal blank line - Jun 10
06:00 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..
08 May 2011, 05:49
Kudos
Bookmarks
A bowl contains red and green chips and no chips of any other color. If two chips are drawn from the basket at random without replacement, what is the probability that both chips will be green?
1): 20% of all chips in the basket are green.
2): The ratio of the number of red chips to the number of green chips is 4:1.
Correct answer is E, but I think its D. can someone pls explain? thx
1): 20% of all chips in the basket are green.
2): The ratio of the number of red chips to the number of green chips is 4:1.
Correct answer is E, but I think its D. can someone pls explain? thx
Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.
Where to now? Try our up-to-date Free Adaptive GMAT Club Tests
for the latest questions.
Still interested? Check out the "Best Topics" block below for better discussion and related questions.
Thank you for understanding, and happy exploring!
08 May 2011, 06:11
Kudos
Bookmarks
1) Clearly insufficient. The total number of green chips is unknown. Pls dont be fooled by the %age.
2) Clearly insufficient. Just the ratio is not sufficient in this case. We need the exact number of red and green chips
To illustrate this I will take two cases -
If there are 8 red chips and 2 green chips. Then the P(two green) = 2/10 * 1/9 = 2/90 = 1/45
If there are 16 red chips and 4 green chips. Then the P(two green) = 4/16 * 3/15 = 1/20
So you see as the green chips increase the P(two green) is getting bigger. Which makes sense !
Hence the answer is E. To get a single answer to this question - we need the exact number of red and green chips in the bowl
2) Clearly insufficient. Just the ratio is not sufficient in this case. We need the exact number of red and green chips
To illustrate this I will take two cases -
If there are 8 red chips and 2 green chips. Then the P(two green) = 2/10 * 1/9 = 2/90 = 1/45
If there are 16 red chips and 4 green chips. Then the P(two green) = 4/16 * 3/15 = 1/20
So you see as the green chips increase the P(two green) is getting bigger. Which makes sense !
Hence the answer is E. To get a single answer to this question - we need the exact number of red and green chips in the bowl
InspiredAnimal
Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.
Where to now? Try our up-to-date Free Adaptive GMAT Club Tests
for the latest questions.
Still interested? Check out the "Best Topics" block above for better discussion and related questions.
Thank you for understanding, and happy exploring!
Moderator:
