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

It is currently 21 Sep 2014, 08:15

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

Are there any easy techniques available for these questions

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 04 Sep 2007
Posts: 215
Followers: 1

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

GMAT Tests User
Are there any easy techniques available for these questions [#permalink] New post 15 May 2008, 14:48
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Are there any easy techniques available for these questions below, without getting into lengthy calculations? Please explain your approach and also recommend any resources that might be helpful in learning such techniques! Thank you.

1). If a circle, regular hexagon and a regular octagon have the same area and if the perimeter of the circle is represented by "c", that of the hexagon by "h" and that of the octagon by "o", then which of the following is true?
A) c > o > h
B) c > h > o
C) h > c > o
D) o > h > c
E) h > o > c

2). In a class comprising boys and girls, there were 45 hand shakes amongst the girls and 105 hand shakes amongst the boys. How many hand shakes took place between a boy and a girl, if each member of the class shook hands exactly once with every other student in the class?
A) 25
B) 15
C) 150
D) 300
E) 24

3). The price of a commodity increases by 25% in January. There is a subsequent 25% increase in its price in February. If a person used to get 1 unit of the commodity for $x in December, how many units of the commodity will he get for $2x in February?
A. 0.64x
B. 0.36x
C. 1.64x
D. 1.28x
E. 1.72x

4). If two positive integers are relatively prime to each other and the product of these two integers is 240, then what is the LCM of these two integers?
A. 120
B. 240
C. 80
D. 30
E. 1

5). How many times is the digit "3" written while numbering the pages of a book from 1 to 1000?
A. 243
B. 252
C. 271
D. 293
E. 300
Expert Post
CEO
CEO
User avatar
Joined: 17 Nov 2007
Posts: 3571
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
Followers: 364

Kudos [?]: 1798 [0], given: 358

GMAT ToolKit User GMAT Tests User Premium Member
Re: Interesting PS Questions - Any easy ways to solve them? [#permalink] New post 15 May 2008, 19:28
Expert's post
Please, post problems separately!

wizardofwashington wrote:
1). If a circle, regular hexagon and a regular octagon have the same area and if the perimeter of the circle is represented by "c", that of the hexagon by "h" and that of the octagon by "o", then which of the following is true?
A) c > o > h
B) c > h > o
C) h > c > o
D) o > h > c
E) h > o > c


Fast way (20 sec):
1. the circle have the least perimeter for the given area among all flat figures.
2. n-angle becomes similar to the circle with growth of n. (triangle is the most 'ineffective" figure and has the greatest perimeter at the same given area)
3. So, h>o>c
_________________

HOT! GMAT TOOLKIT 2 (iOS) / GMAT TOOLKIT (Android) - The OFFICIAL GMAT CLUB PREP APP, a must-have app especially if you aim at 700+ | PrepGame

Manager
Manager
User avatar
Joined: 04 Sep 2007
Posts: 215
Followers: 1

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

GMAT Tests User
Re: Interesting PS Questions - Any easy ways to solve them? [#permalink] New post 16 May 2008, 07:03
Thanks, Walker. As requested, I'll break down the questions into individual posts. Appreciate your contributions to this forum. You have been very helpful!
Re: Interesting PS Questions - Any easy ways to solve them?   [#permalink] 16 May 2008, 07:03
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic Easy technique to convert Recuring Rational to fraction!!! kulkarnios 1 12 Sep 2013, 23:04
Need a lot of practice questions , any resources available ? georgepaul0071987 0 19 Sep 2011, 07:48
1 Ellipsis: Any resource available?? Hussain15 12 06 Sep 2009, 12:45
quick and easy technique for dividing by 5 superman 2 03 Aug 2009, 19:12
Is there a specific technique to resolve such questions? sgoll 4 16 Feb 2007, 16:35
Display posts from previous: Sort by

Are there any easy techniques available for these questions

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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®.