 It is currently 16 Jul 2019, 07:11 ### 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

#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here. # a and b are positive. (a + 6) : (b + 6) = 5 : 6  Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS: Founder  Joined: 18 Apr 2015
Posts: 7322
Followers: 122

Kudos [?]: 1430  , given: 6569

a and b are positive. (a + 6) : (b + 6) = 5 : 6 [#permalink]
1
KUDOS
Expert's post 00:00

Question Stats: 64% (00:32) correct 35% (01:19) wrong based on 17 sessions
a and b are positive. (a + 6) : (b + 6) = 5 : 6

 Quantity A Quantity B b 1

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________ GRE Instructor Joined: 10 Apr 2015
Posts: 2144
Followers: 62

Kudos [?]: 1955  , given: 18

Re: a and b are positive. (a + 6) : (b + 6) = 5 : 6 [#permalink]
3
KUDOS
Expert's post
Carcass wrote:
a and b are positive. (a + 6) : (b + 6) = 5 : 6

 Quantity A Quantity B b 1

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

GIVEN: (a + 6) : (b + 6) = 5 : 6
In other words: (a + 6)/(b + 6) = 5/6
Cross multiply to get: 5(b + 6) = 6(a + 6)
Expand: 5b + 30 = 6a + 36
Subtract 30 from both sides: 5b = 6a + 6
Solve: b = (6a + 6)/5
Simplify: b = 6a/5 + 6/5
Since a is POSITIVE, we know that 6a/5 is POSITIVE
So, b = some POSITIVE number + 6/5
So, b must be greater than 6/5

We get:
QUANTITY A: some number greater than 6/5
QUANTITY B: 1

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com  Re: a and b are positive. (a + 6) : (b + 6) = 5 : 6   [#permalink] 14 Apr 2019, 14:57
Display posts from previous: Sort by

# a and b are positive. (a + 6) : (b + 6) = 5 : 6  Question banks Downloads My Bookmarks Reviews Important topics Powered by phpBB © phpBB Group Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.