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

It is currently 18 Jun 2018, 08:44

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

If x = 0. rstu, where r, s, t, and u each represent a

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
avatar
Joined: 12 Oct 2008
Posts: 491
If x = 0. rstu, where r, s, t, and u each represent a [#permalink]

Show Tags

New post 10 May 2009, 15:59
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

If x = 0. rstu, where r, s, t, and u each represent a nonzero digit of x, what is the value of x?
(1) r = 3s = 2t = 6u
(2) The product of r and u is equal to the product of s and t.

--== 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.
SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1738
Location: New York
Re: DS: X=0 [#permalink]

Show Tags

New post 10 May 2009, 16:17
reply2spg wrote:
If x = 0. rstu, where r, s, t, and u each represent a nonzero digit of x, what is the value of x?
(1) r = 3s = 2t = 6u
(2) The product of r and u is equal to the product of s and t.


r,s,t,u VALUES must be in the range.. 1 to 9

(i)
r=6u... u must be 1 becuase if u=2 r value is >9

u=1 r=6 s =2 2=3

sufficient
(2)

ru=st

r=4 and u=2 s=1 t=8
r=2 and u=8 s=8 t=1

multiple solutions.

not sufficient


A
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Senior Manager
Senior Manager
avatar
Joined: 12 Oct 2008
Posts: 491
Re: DS: X=0 [#permalink]

Show Tags

New post 10 May 2009, 16:36
How A? it is not given what is the place of r,s,t and u??????

It can be 0.1236, 0.2316 so on...
x2suresh wrote:
reply2spg wrote:
If x = 0. rstu, where r, s, t, and u each represent a nonzero digit of x, what is the value of x?
(1) r = 3s = 2t = 6u
(2) The product of r and u is equal to the product of s and t.


r,s,t,u VALUES must be in the range.. 1 to 9

(i)
r=6u... u must be 1 becuase if u=2 r value is >9

u=1 r=6 s =2 2=3

sufficient
(2)

ru=st

r=4 and u=2 s=1 t=8
r=2 and u=8 s=8 t=1

multiple solutions.

not sufficient


A
SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1738
Location: New York
Re: DS: X=0 [#permalink]

Show Tags

New post 10 May 2009, 20:11
reply2spg wrote:
How A? it is not given what is the place of r,s,t and u??????

It can be 0.1236, 0.2316 so on...
x2suresh wrote:
reply2spg wrote:
If x = 0. rstu, where r, s, t, and u each represent a nonzero digit of x, what is the value of x?
(1) r = 3s = 2t = 6u
(2) The product of r and u is equal to the product of s and t.


r,s,t,u VALUES must be in the range.. 1 to 9

(i)
r=6u... u must be 1 becuase if u=2 r value is >9

u=1 r=6 s =2 t=3

sufficient
(2)

ru=st

r=4 and u=2 s=1 t=8
r=2 and u=8 s=8 t=1

multiple solutions.

not sufficient


A


0.1236 ,0.2316
are not possible solutions

they don't satisfy the following equations.
r = 3s = 2t = 6u

only one solution possible... and that is 0.6231


Let me know any solution other than "0.6231" and satisfies above equation.
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Senior Manager
Senior Manager
avatar
Joined: 08 Jan 2009
Posts: 310
Re: DS: X=0 [#permalink]

Show Tags

New post 10 May 2009, 20:13
Same working . Got A.

It is given x = 0.rstu so x can be only equal to x =.6231.
Senior Manager
Senior Manager
avatar
Joined: 12 Oct 2008
Posts: 491
Re: DS: X=0 [#permalink]

Show Tags

New post 12 May 2009, 16:17
thx Suresh....OA A
Director
Director
avatar
Joined: 23 May 2008
Posts: 743
Re: DS: X=0 [#permalink]

Show Tags

New post 12 May 2009, 22:46
got A

only possible soln is let r=6

x=0.6231

--== 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: DS: X=0   [#permalink] 12 May 2009, 22:46
Display posts from previous: Sort by

If x = 0. rstu, where r, s, t, and u each represent a

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


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®.