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

It is currently 20 Oct 2014, 00:15

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

AB CD+ AAA= where AB and CD are two-digit numbers and

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
User avatar
Joined: 30 Nov 2006
Posts: 592
Location: Kuwait
Followers: 11

Kudos [?]: 154 [0], given: 0

AB CD+ AAA= where AB and CD are two-digit numbers and [#permalink] New post 06 May 2007, 02:37
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
AB
CD+
AAA=

where AB and CD are two-digit numbers and AAA is a three digit number; A, B, C, and D are distinct positive integers. In the addition problem above, what is the value of C?

(A) 1

(B) 3

(C) 7

(D) 9

(E) Cannot be determined
Current Student
avatar
Joined: 28 Dec 2004
Posts: 3404
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 164 [0], given: 2

 [#permalink] New post 10 Sep 2007, 13:40
Get 9 too

we know that A is 1...

so

1B
CD
111

try a couple of number 15 for AB and 96 for CD

you can vary B and D but C is always 9..
VP
VP
avatar
Joined: 10 Jun 2007
Posts: 1467
Followers: 6

Kudos [?]: 107 [0], given: 0

Re: PS = Addition [#permalink] New post 10 Sep 2007, 14:57
Mishari wrote:
AB
CD+
AAA=

where AB and CD are two-digit numbers and AAA is a three digit number; A, B, C, and D are distinct positive integers. In the addition problem above, what is the value of C?

(A) 1

(B) 3

(C) 7

(D) 9

(E) Cannot be determined


I think 9
A=1 since anything less than 100 add together will be less than 200

So if B+D <= 9, then
B+D = 1
1+C = 11
C=10

if B+D >9, then
B+D = 11
1+1+C=11
C=9
Director
Director
avatar
Joined: 12 Jun 2006
Posts: 539
Followers: 1

Kudos [?]: 18 [0], given: 1

Re: PS = Addition [#permalink] New post 10 Sep 2007, 15:50
Mishari wrote:
AB
CD+
AAA=

where AB and CD are two-digit numbers and AAA is a three digit number; A, B, C, and D are distinct positive integers. In the addition problem above, what is the value of C?

(A) 1

(B) 3

(C) 7

(D) 9

(E) Cannot be determined
everyone else seemed to get 9. C too

18 + 93 = 111
VP
VP
avatar
Joined: 10 Jun 2007
Posts: 1467
Followers: 6

Kudos [?]: 107 [0], given: 0

 [#permalink] New post 10 Sep 2007, 17:48
Kalyan wrote:
bkk145/ fresinha12, why is A=1 only?


Because if you add two digit numbers, the result must be less than 200
you also know that the result has 3 digits. Therefore, it must be that
100 <= AAA <=199
Therefore, A can only be 1.
CEO
CEO
User avatar
Joined: 29 Mar 2007
Posts: 2593
Followers: 16

Kudos [?]: 197 [0], given: 0

Re: PS = Addition [#permalink] New post 10 Sep 2007, 18:32
Mishari wrote:
AB
CD+
AAA=

where AB and CD are two-digit numbers and AAA is a three digit number; A, B, C, and D are distinct positive integers. In the addition problem above, what is the value of C?

(A) 1

(B) 3

(C) 7

(D) 9

(E) Cannot be determined



Aha finally got it.

Since AB and CD are two digit numbers and AAA is a three digit number. AAA has to be less than 200. Ex/ 99+99=198. So since the last digit of AAA has to be 1 then all the A's are 1.

So the new problem looks like this:

1B
+CD
111

To get 1 from B+D, B+D has to either equal 11 or 1 (0+1). In this case only 11 works b/c C can't be 10.

It doesnt matter what the values of B and D are, but just that they equal 11. Since there is a carry over of 1. C must be equal to 9. Since 9+1+1=11.

The numbers could look like this.

15
+96
111

Ans D
Re: PS = Addition   [#permalink] 10 Sep 2007, 18:32
    Similar topics Author Replies Last post
Similar
Topics:
5 Experts publish their posts in the topic AB + CD = AAA, where AB and CD are two-digit numbers and AA navigator123 7 06 Aug 2012, 09:57
1 Experts publish their posts in the topic AB + CD = AAA, where AB and CD are two-digit numbers and AAA surendar26 2 26 Dec 2010, 07:45
AB + CD = AAA, where AB and CD are two-digit numbers and AAA arjtryarjtry 3 28 Jul 2008, 09:44
AB CD + AAA = where AB and CD are two-digit numbers Mishari 3 06 May 2007, 02:39
2 Experts publish their posts in the topic AB + CD = AAA, where AB and CD are 2 digit numbers and AAA smcgrath12 8 08 Jun 2005, 10:32
Display posts from previous: Sort by

AB CD+ AAA= where AB and CD are two-digit numbers and

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.