GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 16 Oct 2018, 07:37

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

A bowl contains equal numbers of red, orange, green, blue, a

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

Hide Tags

Manager
Manager
avatar
B
Joined: 26 Jul 2011
Posts: 94
Location: India
WE: Marketing (Manufacturing)
A bowl contains equal numbers of red, orange, green, blue, a  [#permalink]

Show Tags

New post 02 May 2013, 12:38
2
8
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

76% (02:31) correct 24% (02:59) wrong based on 371 sessions

HideShow timer Statistics

A bowl contains equal numbers of red, orange, green, blue, and yellow candies. Kaz eats all of the green candies and half of the orange ones. Next, he eats half of the remaining pieces of each color. Finally, he eats red and yellow candies in equal proportions until the total number of remaining candies of all colors equals 15% of the original number. What percent of the red candies remain?

A. 0%
B. 5%
C. 10%
D.15%
E. 20%
VP
VP
User avatar
Status: Far, far away!
Joined: 02 Sep 2012
Posts: 1077
Location: Italy
Concentration: Finance, Entrepreneurship
GPA: 3.8
GMAT ToolKit User
Re: A bowl contains equal numbers of red, orange, green, blue,  [#permalink]

Show Tags

New post 02 May 2013, 12:47
R | O | G | B | Y - colors
10 | 10 | 10 | 10 | 10 - initial situation
10 | 5 | X | 10 | 10 - eats all G and half O
5 | 2.5 | X | 5 | 5 - eats half of the remaining

Now we know that remain 15% of 50 => \(50*15%=7.5\) candies. We have to "eat" R and Y till the remaining candies will be 7.5.

We have to eat ALL R and Y.

0 | 2.5 | X | 5 | 0 = 7.5 remains

\(%\)of \(R\) = \(0%\)
_________________

It is beyond a doubt that all our knowledge that begins with experience.

Kant , Critique of Pure Reason

Tips and tricks: Inequalities , Mixture | Review: MGMAT workshop
Strategy: SmartGMAT v1.0 | Questions: Verbal challenge SC I-II- CR New SC set out !! , My Quant

Rules for Posting in the Verbal Forum - Rules for Posting in the Quant Forum[/size][/color][/b]

Manager
Manager
avatar
Joined: 11 Jun 2010
Posts: 74
Re: A bowl contains equal numbers of red, orange, green, blue,  [#permalink]

Show Tags

New post 02 May 2013, 16:14
1
3
See image attached.
Remianing RED candies = 0
hence 0%

Ans A
Attachments

Candies.JPG
Candies.JPG [ 40.04 KiB | Viewed 6396 times ]

Intern
Intern
avatar
Joined: 14 Mar 2013
Posts: 46
Location: United States
Concentration: General Management, Leadership
GMAT Date: 12-03-2013
WE: General Management (Retail)
Re: A bowl contains equal numbers of red, orange, green, blue, a  [#permalink]

Show Tags

New post 19 Nov 2013, 15:49
Did almost the same as Zarrolou did. I just used numbers that sum 100, I think this is easier to work with % using numbers that sum 100.

R | O | G | B | Y - colors
20 | 20 | 20 | 20 | 20 - initial situation
20 | 10 | 0 | 20 | 20 - eats all G and half O
10 | 5 | 0 | 10 | 10 - eats half of the remaining
0 | 5 | X | 10 | 0 - eats R and Y candies in equal proportions until the total number of remaining candies of all colors equals 15%

Ans A
Manager
Manager
avatar
Joined: 21 Oct 2013
Posts: 187
Location: Germany
GMAT 1: 660 Q45 V36
GPA: 3.51
Re: A bowl contains equal numbers of red, orange, green, blue, a  [#permalink]

Show Tags

New post 23 Jun 2014, 04:04
Pick smart numbers here. 5 different colors of candy: Let's 100 Total, hence 20 pieces each in original. In the end we want to have 15 % of original total, so 15 candies.

20 R + 20 O + 20 G + 20 B + 20 Y = TOTAL (original=100)
First step: Eats all green and half of orange:
20 R + 10 O + 0 G + 20 B + 20 Y = Total (new=70)
Second step: Eats half of the remaining:
10 R + 5 O + 0 G + 10 B + 10 Y = Total (new = 35)
third step: eats equal of R and Y so that 15 % of the ORIGINAL TOTAL remain (=15 candies)
Hence he eats all red and all yellow candies:
5 O + 10 B = 15 Total

Hence we get Answer A: 0 % of red candies remain!
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 8411
Premium Member
Re: A bowl contains equal numbers of red, orange, green, blue, a  [#permalink]

Show Tags

New post 21 Mar 2018, 13:37
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.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

GMAT Club Bot
Re: A bowl contains equal numbers of red, orange, green, blue, a &nbs [#permalink] 21 Mar 2018, 13:37
Display posts from previous: Sort by

A bowl contains equal numbers of red, orange, green, blue, a

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.