Register    Login    Search    Rss Feeds

Forums Home » Ask An Instructor » GMAT Math » Official Guide Math


 Page 1 of 1 [ 3 posts ] 



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

OG - Quant Review #137

Author Message
Guest
 Post subject: OG - Quant Review #137
 Post Posted: Wed Sep 19, 2007 2:01 am 
Hello,

Just wanted some help on the following:

Last year Department store X had a sales total for December that was 4 times the average of the monthly sales totals for January through November. The sales total for December was what fraction of the sales total for the year?

In the solution, it assumes that the the sales total for december was 4 times the sales of each individual month from Jan - Nov. I assumed that it was 4 times the sales of all 11 months from Jan - Nov. What is the clue in the sentence that distinguishes between these two alternatives?

Thank you!
Top 
StaceyKoprince
 Post subject:
 Post Posted: Mon Sep 24, 2007 10:13 pm 
Offline
ManhattanGMAT Staff


Posts: 6077
Location: San Francisco
Please post the answer choices as well, in case others want to study the whole problem.

"average of the monthly sales totals" means take each monthly sales total (11 values) and calculate an average - add them up and divide by 11. That gives you one monthly average - not an 11-month value.

_________________
Stacey Koprince
Instructor
Director of Online Community
ManhattanGMAT
Top 
Greg
 Post subject:
 Post Posted: Sat Oct 13, 2007 4:03 am 
I'm thinking 4/15 is the answer...
Top 
Display posts from previous:  Sort by  
 
 Page 1 of 1 [ 3 posts ] 





Who is online

Users browsing this forum: No registered users 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: