It is currently 20 Oct 2017, 04:06

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

fraction

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
VP
VP
User avatar
Joined: 18 May 2008
Posts: 1258

Kudos [?]: 527 [0], given: 0

fraction [#permalink]

Show Tags

New post 07 Feb 2009, 05:27
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Pls explain ur answers
Attachments

fraction.JPG
fraction.JPG [ 59.1 KiB | Viewed 1390 times ]

Kudos [?]: 527 [0], given: 0

Manager
Manager
avatar
Joined: 21 Aug 2008
Posts: 90

Kudos [?]: 101 [0], given: 0

Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 07:55
May
Lee's Income=L
Lee's Family income=LF
Also,
L=.6LF--- (1)

June
Lee's Income=1.2L
Lee's Family income=LF

We want to find
(1.2L/LF)*100===?
From (1),
LF=5L/3

Hence (1.2L/LF)*100=(1.2L/5L/3)*100=(3.6/5)*100=72%
_________________

"The highest result of education is tolerance."

Kudos [?]: 101 [0], given: 0

VP
VP
User avatar
Joined: 18 May 2008
Posts: 1258

Kudos [?]: 527 [0], given: 0

Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 08:42
I also calculated answer as 72% but its not the OA

Kudos [?]: 527 [0], given: 0

Manager
Manager
avatar
Joined: 04 Jan 2009
Posts: 237

Kudos [?]: 13 [0], given: 0

Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 11:19
ritula wrote:
I also calculated answer as 72% but its not the OA

let the total income in may for Lees be 100.
Mrs income is 60.
Rest of Lees make 40.
In june, Mrs makes 72. Rest of the family stays at 40.
So,
72/(72+40)=72/112=18/28 = 9/14 = .64
Hence, A.
_________________

-----------------------
tusharvk

Kudos [?]: 13 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 30 Nov 2008
Posts: 485

Kudos [?]: 361 [0], given: 15

Schools: Fuqua
Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 11:59
Let be Mrs L income in MAY be x. It is given this is 60% of TI(Total income)

==> x = 60% of TI

In June she earned 20 % more than in may ie her income in June will be X+ 20% x = 120% x

Now 120% X will be 120 % of 60 % of TI = \(120 / 100 * 60 /100 * TI\) = 72 % of TI

Kudos [?]: 361 [0], given: 15

Manager
Manager
avatar
Joined: 01 May 2008
Posts: 111

Kudos [?]: 7 [0], given: 0

Location: São Paulo
Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 14:46
Let's pick numbers. Mr. Lee earns $ 60, and the income of his family is $ 100. If he gets 20% more, he gets $72, and Lee's family total income would be $ 112.
So, 72 / 112 = aprox. 64%. A is the correct answer

Kudos [?]: 7 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 30 Nov 2008
Posts: 485

Kudos [?]: 361 [0], given: 15

Schools: Fuqua
Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 16:02
Oops.....that is true. Answer might be A.

Kudos [?]: 361 [0], given: 15

SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1792

Kudos [?]: 1061 [0], given: 5

Location: New York
Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 22:43
%= 72/72+40 = 9/(5+9)=9/14 = 64.28%

A
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Kudos [?]: 1061 [0], given: 5

SVP
SVP
User avatar
Joined: 29 Aug 2007
Posts: 2472

Kudos [?]: 843 [0], given: 19

Re: fraction [#permalink]

Show Tags

New post 07 Feb 2009, 23:14
ritula wrote:
Pls explain ur answers


\(It should be A.\)

\(= \frac{1.2 (0.6x)}{1.2(0.6x)+0.4x}\)

\(= approx........... 64%\)
_________________

Verbal: http://gmatclub.com/forum/new-to-the-verbal-forum-please-read-this-first-77546.html
Math: http://gmatclub.com/forum/new-to-the-math-forum-please-read-this-first-77764.html
Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Kudos [?]: 843 [0], given: 19

VP
VP
User avatar
Joined: 18 May 2008
Posts: 1258

Kudos [?]: 527 [0], given: 0

Re: fraction [#permalink]

Show Tags

New post 08 Feb 2009, 10:34
OA is A.
Thanks 2 all

Kudos [?]: 527 [0], given: 0

Manager
Manager
avatar
Joined: 04 Jan 2009
Posts: 237

Kudos [?]: 13 [0], given: 0

Re: fraction [#permalink]

Show Tags

New post 08 Feb 2009, 13:32
x2suresh wrote:
%= 72/72+40 = 9/(5+9)=9/14 = 64.28%

A

Suresh

how did you get the last two decimals? I was only able to do 64 without calculator.
_________________

-----------------------
tusharvk

Kudos [?]: 13 [0], given: 0

SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1792

Kudos [?]: 1061 [0], given: 5

Location: New York
Re: fraction [#permalink]

Show Tags

New post 08 Feb 2009, 15:22
tusharvk wrote:
x2suresh wrote:
%= 72/72+40 = 9/(5+9)=9/14 = 64.28%

A

Suresh

how did you get the last two decimals? I was only able to do 64 without calculator.


try again???? :lol: :lol: you will get the fractional part too..
though it is not necessary find fractional part for this question..
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Kudos [?]: 1061 [0], given: 5

SVP
SVP
User avatar
Joined: 29 Aug 2007
Posts: 2472

Kudos [?]: 843 [0], given: 19

Re: fraction [#permalink]

Show Tags

New post 08 Feb 2009, 20:12
tusharvk wrote:
x2suresh wrote:
%= 72/72+40 = 9/(5+9)=9/14 = 64.28%

A

Suresh

how did you get the last two decimals? I was only able to do 64 without calculator.


Precisely, it is 64.29%.

=0.72/1.12
= 9/14
= 64.29%
_________________

Verbal: http://gmatclub.com/forum/new-to-the-verbal-forum-please-read-this-first-77546.html
Math: http://gmatclub.com/forum/new-to-the-math-forum-please-read-this-first-77764.html
Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Kudos [?]: 843 [0], given: 19

Re: fraction   [#permalink] 08 Feb 2009, 20:12
Display posts from previous: Sort by

fraction

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.