Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 24 May 2017, 18:10

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Proportion

Author Message
Director
Joined: 28 Jul 2011
Posts: 550
Location: United States
GPA: 3.86
WE: Accounting (Commercial Banking)
Followers: 3

Kudos [?]: 238 [0], given: 16

### Show Tags

10 Jan 2012, 07:22
00:00

Difficulty:

(N/A)

Question Stats:

50% (00:00) correct 50% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

Can anyone help with this???
[Reveal] Spoiler: OA

Attachments

proportion.jpg [ 94.71 KiB | Viewed 1205 times ]

_________________

Intern
Joined: 16 Dec 2011
Posts: 49
GMAT Date: 04-23-2012
Followers: 0

Kudos [?]: 6 [0], given: 12

### Show Tags

10 Jan 2012, 07:35
a:b:C = 3:4:7
a/b =3/4
b/c =4/7
implies a = 3/4b
& c= 7/4b

substiute in c-a = 12 we will get value of b and accordinlgy all values and add them

so both are rquired to answer it ......... it should be C both stats together are suiffcient
could u tell me what is the correct answer
Director
Joined: 28 Jul 2011
Posts: 550
Location: United States
GPA: 3.86
WE: Accounting (Commercial Banking)
Followers: 3

Kudos [?]: 238 [0], given: 16

### Show Tags

11 Jan 2012, 03:28
pbull78 wrote:
a:b:C = 3:4:7
a/b =3/4
b/c =4/7
implies a = 3/4b
& c= 7/4b

substiute in c-a = 12 we will get value of b and accordinlgy all values and add them

so both are rquired to answer it ......... it should be C both stats together are suiffcient
could u tell me what is the correct answer

But when we add all together we get a final value of 2C.....which can vary based on the value of C right.....how can C be the answer
_________________

Intern
Joined: 16 Dec 2011
Posts: 49
GMAT Date: 04-23-2012
Followers: 0

Kudos [?]: 6 [0], given: 12

### Show Tags

11 Jan 2012, 03:40
when we solve this we will get a= 9 b= 12 and c = 21

now a+b+c = 9+12+21 = 42 so these values are satisfyin both options 9:12:21= 3:4:7 and c-a =21-9=12
so where is the confusion .. as both are required to answer it
i hope u understood this
Manager
Status: Employed
Joined: 17 Nov 2011
Posts: 99
Location: Pakistan
GMAT 1: 720 Q49 V40
GPA: 3.2
WE: Business Development (Internet and New Media)
Followers: 7

Kudos [?]: 146 [0], given: 10

### Show Tags

11 Jan 2012, 03:48
It also gives you the difference between two ratios thereby defining the ratio and hence C is the correct answer !
_________________

"Nowadays, people know the price of everything, and the value of nothing." Oscar Wilde

Re: Proportion   [#permalink] 11 Jan 2012, 03:48
Display posts from previous: Sort by