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

 It is currently 30 Aug 2016, 16:44

### 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

# 2 moderately difficult Quant Problems from past GMAT exams

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

### Hide Tags

Manager
Status: Current MBA Student
Joined: 19 Nov 2009
Posts: 127
Concentration: Finance, General Management
GMAT 1: 720 Q49 V40
Followers: 13

Kudos [?]: 275 [0], given: 210

2 moderately difficult Quant Problems from past GMAT exams [#permalink]

### Show Tags

05 Oct 2010, 12:20
00:00

Difficulty:

(N/A)

Question Stats:

67% (11:32) correct 33% (00:31) wrong based on 3 sessions

### HideShow timer Statistics

Hello Club,

Can you please provide me with some simple approaches to solve these problems. I got both answers correct by narrowing down the choices, but I want to be solid in my math understanding. I appreciate any help you can provide. Thank you!

14. The figure above represents a square plot measuring x feet on a side. The plot consists of a rectangular garden, 48 square feet in area, surrounded by a walk that is 3 feet wide on two opposite sides and 2 feet wide on the other two sides. What is the value of x?

a. 8
b. 10
c. 12
d. 16
e. 18

16. In a certain country 55 percent of women are in the labor force and these women comprise 40% of the labor force. If the number of men in the labor force is 75 million, how many million women are in the labor force?

a. 50.00
b. 56.25
c. 68.75
d. 112.50
e. 125.00
Math Expert
Joined: 02 Sep 2009
Posts: 34511
Followers: 6304

Kudos [?]: 79986 [1] , given: 10022

Re: 2 moderately difficult Quant Problems from past GMAT exams [#permalink]

### Show Tags

05 Oct 2010, 12:58
1
KUDOS
Expert's post
 ! Please post PS questions in the PS subforum: gmat-problem-solving-ps-140/Please post DS questions in the DS subforum: gmat-data-sufficiency-ds-141/No posting of PS/DS questions is allowed in the main Math forum.

ALSO PLEASE POST ONE QUESTION PER TOPIC.

14. The figure above represents a square plot measuring x feet on a side. The plot consists of a rectangular garden, 48 square feet in area, surrounded by a walk that is 3 feet wide on two opposite sides and 2 feet wide on the other two sides. What is the value of x?

a. 8
b. 10
c. 12
d. 16
e. 18

Guess it's a square with a side of x and rectangle with area 48 inside it.

The length of the rectangular garden would be $$x-2*2$$ and the width would be $$x-2*3$$ --> $$area=(x-4)(x-6)=48$$ --> $$x^2-10x-24=0$$ --> $$x=12$$ or $$x=-2$$ (not a valid solution).

16. In a certain country 55 percent of women are in the labor force and these women comprise 40% of the labor force. If the number of men in the labor force is 75 million, how many million women are in the labor force?

a. 50.00
b. 56.25
c. 68.75
d. 112.50
e. 125.00

As 40% of the labor force are women then 60% of labor force are men, so 75m comprise 60% of the labor force --> total labor force $$\frac{75}{0.6}=125$$ so there are $$125*0.4=50$$ million women.

_________________
Retired Moderator
Joined: 02 Sep 2010
Posts: 805
Location: London
Followers: 101

Kudos [?]: 860 [0], given: 25

Re: 2 moderately difficult Quant Problems from past GMAT exams [#permalink]

### Show Tags

05 Oct 2010, 12:49
moved to PS sub-forum
_________________
Retired Moderator
Joined: 02 Sep 2010
Posts: 805
Location: London
Followers: 101

Kudos [?]: 860 [0], given: 25

Re: 2 moderately difficult Quant Problems from past GMAT exams [#permalink]

### Show Tags

05 Oct 2010, 12:52
tonebeeze wrote:
Hello Club,

Can you please provide me with some simple approaches to solve these problems. I got both answers correct by narrowing down the choices, but I want to be solid in my math understanding. I appreciate any help you can provide. Thank you!

14. The figure above represents a square plot measuring x feet on a side. The plot consists of a rectangular garden, 48 square feet in area, surrounded by a walk that is 3 feet wide on two opposite sides and 2 feet wide on the other two sides. What is the value of x?

a. 8
b. 10
c. 12
d. 16
e. 18

16. In a certain country 55 percent of women are in the labor force and these women comprise 40% of the labor force. If the number of men in the labor force is 75 million, how many million women are in the labor force?

a. 50.00
b. 56.25
c. 68.75
d. 112.50
e. 125.00

No of men in labour force = 75m
Men compromise 60% of labour force
So number of women in labour force = 40/60*75m = 50m

You need to provide the figure for Q1
_________________
Manager
Status: Current MBA Student
Joined: 19 Nov 2009
Posts: 127
Concentration: Finance, General Management
GMAT 1: 720 Q49 V40
Followers: 13

Kudos [?]: 275 [0], given: 210

Re: 2 moderately difficult Quant Problems from past GMAT exams [#permalink]

### Show Tags

05 Oct 2010, 13:30
Ok...I apologize for the posting errors. Thanks for the help.
Re: 2 moderately difficult Quant Problems from past GMAT exams   [#permalink] 05 Oct 2010, 13:30
Similar topics Replies Last post
Similar
Topics:
2 A difficult math problem, no ordinary person comes in~ 7 24 Jul 2011, 03:57
2 Difficult questions from a practice test 2 30 Apr 2011, 20:45
2 From MitDavidDv: GMAT Quant-Math Question #2 5 07 Apr 2011, 15:43
Remainder problem from GMAT 1 21 Nov 2010, 08:55
2 Please help!! Difficult problems from GMATPrep 8 14 Sep 2010, 19:22
Display posts from previous: Sort by

# 2 moderately difficult Quant Problems from past GMAT exams

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

 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®.