Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 20 May 2013, 15:12
Customize  |  Hide

Search
Register
New posts
Unanswered

If the tens digit x and the units digit y of a positive

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 14 Dec 2005
Posts: 77
Followers: 1

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

If the tens digit x and the units digit y of a positive [#permalink] New post 26 Feb 2006, 10:43
If the tens digit x and the units digit y of a positive integer n are
reversed, the resulting integer is 9 more than n. What is y in terms of x ?
(A) 10 - x
(B) 9 - x
(C) x + 9
(D) x - 1
(E) x + 1
Intern
Intern
Joined: 08 Jan 2006
Posts: 27
Followers: 0

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

 [#permalink] New post 26 Feb 2006, 11:03
E.

From first statement:
x*10+y=n
When x and y are reversed:
y*10+x=n+9

Solving both equations:
10y+x=10x+y+9
9y=9x+9
y=x+1
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jul 2004
Posts: 5134
Location: Singapore
Followers: 9

Kudos [?]: 87 [0], given: 0

GMAT Tests User
 [#permalink] New post 26 Feb 2006, 19:10
Before reverse n = 10x + y
After reverse number becomes 10y+x --> this is 9 more than n

10y+x-9 = 10x+y
9y = 9x+9
y = x+1

Ans E
  [#permalink] 26 Feb 2006, 19:10
    Similar topics Author Replies Last post
Similar
Topics:
 New posts The product of the units digit, the tens digit, and the Antmavel 2 18 Oct 2004, 19:08
New posts if the tens digit x and the units digit y of a positive lan583 6 18 Oct 2006, 16:07
New posts The tens digit of positive integer X is 3. Is the units mymba99 3 23 Apr 2008, 08:04
Popular new posts The tens digit of positive integer X is 3. Is the units puma 10 04 Jun 2008, 13:27
New posts 1 EXPERTS_POSTS_IN_THIS_TOPIC If the tens digit x and the units digit y of a positive eybrj2 6 07 Mar 2012, 15:32
Display posts from previous: Sort by

If the tens digit x and the units digit y of a positive

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma

Search for:


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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com