Can anyone suggest when it is better to use Combination nCr vs when it is better to use counting method ? Examples will be be appreciated.
I finally get the answer but it consumes lot of time. This happens for bit difficult questions.
Thanks
Strategy for Probability
This topic has expert replies
GMAT/MBA Expert
- Brent@GMATPrepNow
- GMAT Instructor
- Posts: 16207
- Joined: Mon Dec 08, 2008 6:26 pm
- Location: Vancouver, BC
- Thanked: 5254 times
- Followed by:1268 members
- GMAT Score:770
We have a free video that answers that question - https://www.gmatprepnow.com/module/gmat- ... /video/788
Cheers,
Brent
Cheers,
Brent
GMAT/MBA Expert
- [email protected]
- Elite Legendary Member
- Posts: 10392
- Joined: Sun Jun 23, 2013 6:38 pm
- Location: Palo Alto, CA
- Thanked: 2867 times
- Followed by:511 members
- GMAT Score:800
Hi m,
If you've come across specific prompts that have taken you a long time to solve (or have given you any type of trouble), then you should post them here. You would probably find it beneficial to watch the Experts and other Users work through those questions.
GMAT assassins aren't born, they're made,
Rich
If you've come across specific prompts that have taken you a long time to solve (or have given you any type of trouble), then you should post them here. You would probably find it beneficial to watch the Experts and other Users work through those questions.
GMAT assassins aren't born, they're made,
Rich
- Jim@StratusPrep
- MBA Admissions Consultant
- Posts: 2279
- Joined: Fri Nov 11, 2011 7:51 am
- Location: New York
- Thanked: 660 times
- Followed by:266 members
- GMAT Score:770
You will likely find this helpful: https://gmatanswers.com/posts/gmat-permu ... mbinations
This is not the traditional way these subjects are taught.
This is not the traditional way these subjects are taught.
GMAT Answers provides a world class adaptive learning platform.
-- Push button course navigation to simplify planning
-- Daily assignments to fit your exam timeline
-- Organized review that is tailored based on your abiility
-- 1,000s of unique GMAT questions
-- 100s of handwritten 'digital flip books' for OG questions
-- 100% Free Trial and less than $20 per month after.
-- Free GMAT Quantitative Review
-- Push button course navigation to simplify planning
-- Daily assignments to fit your exam timeline
-- Organized review that is tailored based on your abiility
-- 1,000s of unique GMAT questions
-- 100s of handwritten 'digital flip books' for OG questions
-- 100% Free Trial and less than $20 per month after.
-- Free GMAT Quantitative Review