GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 16 Aug 2018, 01:09

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

shortcut pls!

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Director
Director
avatar
Joined: 23 May 2008
Posts: 739
shortcut pls!  [#permalink]

Show Tags

New post 11 Feb 2009, 00:58
sqrt((16)(20)+(8)(32))

can this be solved by factoring?

OG 11 says to compute

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Senior Manager
Senior Manager
avatar
Joined: 02 Nov 2008
Posts: 251
Re: shortcut pls!  [#permalink]

Show Tags

New post 11 Feb 2009, 01:01
bigtreezl wrote:
sqrt((16)(20)+(8)(32))

can this be solved by factoring?

OG 11 says to compute


It's very easy to compute this and it should take you less than 2 mins.

4 * 20 = 80

8 * 32 = 256 (you can think of this as 16^2)

256 +80 = 336
Director
Director
avatar
Joined: 23 May 2008
Posts: 739
Re: shortcut pls!  [#permalink]

Show Tags

New post 11 Feb 2009, 01:11
thanks..but thats not the right answer...cant illustrate it correctly on here, but you take the sqrt of the whole equation, not just 16
CEO
CEO
User avatar
B
Joined: 17 Nov 2007
Posts: 3484
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
GMAT ToolKit User Premium Member CAT Tests
Re: shortcut pls!  [#permalink]

Show Tags

New post 11 Feb 2009, 03:38
1
\(\sqrt{16*20+8*32}=\sqrt{16*20+16*16}=\sqrt{16*(20+16)}=\sqrt{16*36}=4*6=24\)
_________________

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

VP
VP
User avatar
Joined: 18 May 2008
Posts: 1176
Re: shortcut pls!  [#permalink]

Show Tags

New post 11 Feb 2009, 10:20
Yes, I also solved in the same way as walker and got ans as 24. Guys, wht do u think are the questions in OG too simple as compared to those that actually cum in exam?
Director
Director
avatar
Joined: 23 May 2008
Posts: 739
Re: shortcut pls!  [#permalink]

Show Tags

New post 11 Feb 2009, 11:01
walker wrote:
\(\sqrt{16*20+8*32}=\sqrt{16*20+16*16}=\sqrt{16*(20+16)}=\sqrt{16*36}=4*6=24\)



wonderful! thanks

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: shortcut pls! &nbs [#permalink] 11 Feb 2009, 11:01
Display posts from previous: Sort by

shortcut pls!

  post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderator: chetan2u

Events & Promotions

PREV
NEXT


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