Find all School-related info fast with the new School-Specific MBA Forum

It is currently 01 Aug 2014, 20:57

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Four-ninths of a drink mix is dye and the rest is sugar. Whe

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
User avatar
Joined: 07 Jun 2004
Posts: 618
Location: PA
Followers: 2

Kudos [?]: 142 [0], given: 22

GMAT Tests User
Four-ninths of a drink mix is dye and the rest is sugar. Whe [#permalink] New post 25 Dec 2010, 05:26
3
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

74% (02:35) correct 26% (01:50) wrong based on 100 sessions
Four-ninths of a drink mix is dye and the rest is sugar. When the mix is added to water a gallon of drink is made that is 7.5% sugar. What percentage of the gallon is dye?

(A) 6
(B) 6.5
(C) 7.5
(D) 8
(E) 24
[Reveal] Spoiler: OA

_________________

If the Q jogged your mind do Kudos me : )

3 KUDOS received
Manager
Manager
avatar
Joined: 25 Jun 2010
Posts: 94
Followers: 1

Kudos [?]: 22 [3] , given: 0

GMAT ToolKit User GMAT Tests User
Re: Mixture problem [#permalink] New post 25 Dec 2010, 06:47
3
This post received
KUDOS
The proportion of Dye and sugar will remain constant.

Dye/Sugar = (4/9)/(5/9) = x/7.5
=> 4/5 = x/7.5 => x = 4*7.5/5 = 6.

Answer is A.
Manager
Manager
User avatar
Joined: 19 Aug 2010
Posts: 78
Followers: 2

Kudos [?]: 9 [0], given: 2

Re: Mixture problem [#permalink] New post 25 Dec 2010, 06:49
I use a very simple way with fractions to find the calue of x:

\frac{4}{9}/\frac{x}{100} = \frac{5}{9}/\frac{7,5}{100}

When you solve it you will find that x=6
Senior Manager
Senior Manager
avatar
Joined: 25 May 2010
Posts: 322
Location: United States
Concentration: Strategy, Finance
Schools: CBS '14 (A)
GMAT 1: 590 Q47 V25
GMAT 2: 560 Q47 V20
GMAT 3: 600 Q47 V25
GMAT 4: 680 Q49 V34
Followers: 4

Kudos [?]: 46 [0], given: 32

GMAT ToolKit User GMAT Tests User Reviews Badge
Re: Mixture problem [#permalink] New post 25 Dec 2010, 07:41
Can some one explain when to use traditional mixture solutions using grid and when to use simple proportionality equations?
_________________

"Whether You Think You Can or Can't, You're Right"--Henry Ford
680 Debrief
600 Debrief
590 Debrief
My GMAT Journey

Manager
Manager
avatar
Joined: 27 Jul 2010
Posts: 197
Location: Prague
Schools: University of Economics Prague
Followers: 1

Kudos [?]: 15 [0], given: 15

GMAT ToolKit User GMAT Tests User
Re: Mixture problem [#permalink] New post 25 Dec 2010, 16:20
rg1 wrote:
Can some one explain when to use traditional mixture solutions using grid and when to use simple proportionality equations?

Here you are adding the whole mixture to water, also the ratio water to sugar remains unchanged.

Also you only have to make simple comptutation: 7,5/5*4=6
_________________

You want somethin', go get it. Period!

SVP
SVP
User avatar
Joined: 09 Sep 2013
Posts: 1844
Followers: 167

Kudos [?]: 33 [0], given: 0

Premium Member
Re: Mixture problem [#permalink] New post 30 Oct 2013, 06:52
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

SVP
SVP
User avatar
Joined: 06 Sep 2013
Posts: 1629
Location: United States
Concentration: Finance
GMAT 1: 710 Q48 V39
WE: Corporate Finance (Investment Banking)
Followers: 10

Kudos [?]: 139 [0], given: 254

GMAT ToolKit User
Re: Four-ninths of a drink mix is dye and the rest is sugar. Whe [#permalink] New post 16 Dec 2013, 04:42
rxs0005 wrote:
Four-ninths of a drink mix is dye and the rest is sugar. When the mix is added to water a gallon of drink is made that is 7.5% sugar. What percentage of the gallon is dye?

(A) 6
(B) 6.5
(C) 7.5
(D) 8
(E) 24


Here, let's say that the gallon is 100 litres.
Then sugar in the gallon will be 7.5 litres
Now 5/9x=7.5
'x' is the amoung of the mix poured into gallon
x = (9)(1.5)

Now dye will be 9(1.5)*(4/9)=1.5*4=6

Hence A

Even if you don't find the way to solve it you can straight eliminate answers C,D,E cause the amount of dye is always going to be less given the
4:5 ratio

Hope it helps
Cheers!
J :)
Re: Four-ninths of a drink mix is dye and the rest is sugar. Whe   [#permalink] 16 Dec 2013, 04:42
    Similar topics Author Replies Last post
Similar
Topics:
One and a half litre of 43% alcoholic drink is mixed with a derekgmat 0 10 Nov 2012, 12:57
1 A dye company received an order of 400 litres of black dye cleetus 2 03 Aug 2011, 21:09
probability that he is also drinking mixed drinks ? Alchemist1320 1 10 Jul 2011, 19:43
Four-ninths of a drink mix is dye and the rest is sugar. Ravshonbek 4 24 Dec 2007, 11:34
Drink Drive saurabhmalpani 3 23 Dec 2004, 21:42
Display posts from previous: Sort by

Four-ninths of a drink mix is dye and the rest is sugar. Whe

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.