Register    Login    Search    Rss Feeds

Forums Home » Ask An Instructor » GMAT Math » GMAT Prep Math


 Page 1 of 1 [ 4 posts ] 



  Print view Print view Previous topic Previous topic | Next topic Next topic
 

2 Digit sum

Author Message
Sneha.ny
 Post subject: 2 Digit sum
 Post Posted: Thu Mar 24, 2011 1:46 pm 
Offline
Course Students


Posts: 2
If the sum of the digits of the positive two-digit number x is 4, what is the value of x?

(1) x is odd.

(2) Twice the value of x is less than 44.


Query:
x = two digit number. So X can be equal to 04? 0+4 = 4.
In this case, C and not B (Which is the MGMAT answer) will be the answer.

I want to know why x = 04 is not a valid case?

Thanks in advance.
Top 
david.khoy
 Post subject: Re: 2 Digit sum
 Post Posted: Thu Mar 24, 2011 2:05 pm 
Offline
Students


Posts: 30
Because 4 is not a two-digit number. It's a one-digit number, even if you add a 0 in front. Two-digit numbers begin with 10.

If I say that I will give you a check with a 7 digit figure, I guess you are going to expect millions, not $1 ($0000001) or $10 ($0000010).
Top 
Sneha.ny
 Post subject: Re: 2 Digit sum
 Post Posted: Thu Mar 24, 2011 3:02 pm 
Offline
Course Students


Posts: 2
Fair enough.. thx!
Top 
jnelson0612
 Post subject: Re: 2 Digit sum
 Post Posted: Thu Mar 24, 2011 8:17 pm 
Offline
ManhattanGMAT Staff


Posts: 1857
Ha, great point David!

_________________
Jamie Nelson
ManhattanGMAT Instructor
Top 
Display posts from previous:  Sort by  
 
 Page 1 of 1 [ 4 posts ] 





Who is online

Users browsing this forum: das.sourabh85 and 0 guests

 
 

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: