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
 

in a certain state, gasoline stations compute

Author Message
mgmat
 Post subject: in a certain state, gasoline stations compute
 Post Posted: Sat Apr 26, 2008 2:42 pm 
In a certain state, gasoline stations compute the price per gallon p, in dollars, charged at the pump by adding a 4 percent sales tax to the dealer’s price per gallon d, in dollars, and then adding a gasoline tax of $0.18 per gallon. Which of the following gives the dealer’s price per gallon d in terms of the price per gallon p charged at the pump?

A. d=p-0.22
B. d=p/1.22
C. d=(p/1.04)-0.18
D. d=(p-0.18)/1.04
E. d=(p-0.04)/1.18

Answer D.

Can you please go through this?
Top 
Sudhan
 Post subject:
 Post Posted: Sat Apr 26, 2008 4:11 pm 
In a certain state, gasoline stations compute the price per gallon p, in dollars, charged at the pump by adding a 4 percent sales tax to the dealer’s price per gallon d, in dollars, and then adding a gasoline tax of $0.18 per gallon. Which of the following gives the dealer’s price per gallon d in terms of the price per gallon p charged at the pump?


p (price per gallon)= d+ 4% (d) + 0.18

p= 1.04 d+0.18$

1.04d= p-0.18
d= p-0.18/1.04

Hence D

Thanks
Top 
mgmat
 Post subject: ah
 Post Posted: Sat Apr 26, 2008 6:23 pm 
beautifully done. thanks.
Top 
rfernandez
 Post subject:
 Post Posted: Fri May 02, 2008 3:47 pm 
Offline
ManhattanGMAT Staff


Posts: 386
Nice solution. And a VIC approach would work nicely here, too.

Rey
Top 
Display posts from previous:  Sort by  
 
 Page 1 of 1 [ 4 posts ] 





Who is online

Users browsing this forum: No registered users and 1 guest

 
 

 
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: