GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 04 Jul 2020, 16:36

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Grace has 16 jellybeans in her pocket. She has 8 red ones, 4

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Intern
Intern
avatar
Joined: 06 Sep 2012
Posts: 4
Location: United States
Concentration: Marketing, International Business
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4  [#permalink]

Show Tags

New post Updated on: 02 Nov 2012, 13:10
8
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

77% (00:46) correct 23% (01:29) wrong based on 217 sessions

HideShow timer Statistics

Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

A. 4
B. 8
C. 12
D. 13
E. 16

Originally posted by MariaF on 02 Nov 2012, 11:18.
Last edited by Bunuel on 02 Nov 2012, 13:10, edited 1 time in total.
Renamed the topic and edited the question.
Manager
Manager
avatar
Joined: 25 Jun 2012
Posts: 55
Re: One more easy question  [#permalink]

Show Tags

New post 02 Nov 2012, 11:56
1
MariaF wrote:
ok... My brains don't work for today....
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

A. 4
B. 8
C. 12
D. 13
E. 16


Maria,
I doubt if it is al-gebra.
It is a probability problem.

Grace, in the worst case may take out 8 red jellyes ► 4 green ► and the next will be the blue one.
So 13 - is the minimum number of jellybeans.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 64944
Re: Grace has 16 jellybeans in her pocket. She has 8 red ones, 4  [#permalink]

Show Tags

New post 02 Nov 2012, 13:15
2
1
MariaF wrote:
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

A. 4
B. 8
C. 12
D. 13
E. 16


The worst scenario is when she takes 8 red and 4 green, total of 12 jellybeans, and still doesn't have 3 distinct colors. But the next draw (13th) will surely be the third color jellybean (blue) as there is no other color jellybeans left in pocket.

Answer: D.
_________________
Senior Manager
Senior Manager
User avatar
G
Joined: 24 Nov 2015
Posts: 467
Location: United States (LA)
Reviews Badge
Re: Grace has 16 jellybeans in her pocket. She has 8 red ones, 4  [#permalink]

Show Tags

New post 01 Apr 2016, 13:21
The worst case arises when she takes 8 red and 4 green, and still doesn't have 3 distinct colors. So she draws (13th) next which will surely be the third color jellybean (blue) as no other colour jellybean is left in her pocket
Answer - D
Intern
Intern
avatar
B
Joined: 16 Dec 2013
Posts: 32
Location: United States
GPA: 3.7
GMAT ToolKit User
Re: Grace has 16 jellybeans in her pocket. She has 8 red ones, 4  [#permalink]

Show Tags

New post 03 Apr 2016, 06:19
Bunuel wrote:
MariaF wrote:
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

A. 4
B. 8
C. 12
D. 13
E. 16


The worst scenario is when she takes 8 red and 4 green, total of 12 jellybeans, and still doesn't have 3 distinct colors. But the next draw (13th) will surely be the third color jellybean (blue) as there is no other color jellybeans left in pocket.

Answer: D.


Shouldn't it be 9 actually...in case she picks G and B, then on 9th trial she can get a R.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 64944
Re: Grace has 16 jellybeans in her pocket. She has 8 red ones, 4  [#permalink]

Show Tags

New post 03 Apr 2016, 10:45
1
Avinashs87 wrote:
Bunuel wrote:
MariaF wrote:
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

A. 4
B. 8
C. 12
D. 13
E. 16


The worst scenario is when she takes 8 red and 4 green, total of 12 jellybeans, and still doesn't have 3 distinct colors. But the next draw (13th) will surely be the third color jellybean (blue) as there is no other color jellybeans left in pocket.

Answer: D.


Shouldn't it be 9 actually...in case she picks G and B, then on 9th trial she can get a R.


For such cases when we should ensure, guarantee some outcome we always consider the worst case scenario. For 9 picks it's possible that Grace picks 8 R's and 1 G.

Check other Worst Case Scenario Questions from our Special Questions Directory to understand the concept better.
_________________
Manager
Manager
User avatar
G
Joined: 13 Apr 2019
Posts: 178
Location: India
Concentration: Marketing, Operations
GMAT 1: 690 Q49 V35
GPA: 3.5
WE: General Management (Retail)
Reviews Badge
Re: Grace has 16 jellybeans in her pocket. She has 8 red ones, 4  [#permalink]

Show Tags

New post 04 Aug 2019, 03:56
MariaF wrote:
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

A. 4
B. 8
C. 12
D. 13
E. 16


13 (8+4+1) worst case
GMAT Club Bot
Re: Grace has 16 jellybeans in her pocket. She has 8 red ones, 4   [#permalink] 04 Aug 2019, 03:56

Grace has 16 jellybeans in her pocket. She has 8 red ones, 4

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne