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.
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 2510:00 AM EST
-11:00 AM EST
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
18 Sep 2024, 05:30
Kudos
Bookmarks
The key is to focus on the packages and NOT the number of notebooks.
We have 4 colors and 2 sizes, let's say:
Bb, Gg, Yy, Pp
First, let's solve for the same size and same color in the package (again do not think about the number of notebooks but the number of possible packages)
Color can be picked in 4 ways (any of the 4) and the size can be picked in 2 ways. Therefore we have 4*2 = 8 possibilities.
Now the next step, how many packages if the size is the same and the colors are different within a package. The key to note is we still have the same colors and same number of ways to pick a colour, we have to choose 3 colours from 4, 4c3 = 4. We have 2 sizes, so possible packages = 4*2 = 8. Adding the 2 conditions we get 8 + 8 = 16. Hope this helps.
We have 4 colors and 2 sizes, let's say:
Bb, Gg, Yy, Pp
First, let's solve for the same size and same color in the package (again do not think about the number of notebooks but the number of possible packages)
Color can be picked in 4 ways (any of the 4) and the size can be picked in 2 ways. Therefore we have 4*2 = 8 possibilities.
Now the next step, how many packages if the size is the same and the colors are different within a package. The key to note is we still have the same colors and same number of ways to pick a colour, we have to choose 3 colours from 4, 4c3 = 4. We have 2 sizes, so possible packages = 4*2 = 8. Adding the 2 conditions we get 8 + 8 = 16. Hope this helps.
03 Oct 2025, 10:50
Kudos
Bookmarks
Hello from the GMAT Club BumpBot!
Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
