GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 19 Aug 2018, 14:13

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

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

Show Tags

29 Sep 2011, 10:10
00:00

Difficulty:

15% (low)

Question Stats:

88% (01:26) correct 12% (00:23) wrong based on 17 sessions

HideShow timer Statistics

A music store has 90 different CD's. If an average price is $12 per CD and 20 of the most expensive ones are$20 each, what is the average price of the remaining CD's?

A. 8.33
B. 8.75
C. 9.23
D. 9.71
E. 10.07

M06-33

_________________

I'm the Dumbest of All !!

Math Expert
Joined: 02 Sep 2009
Posts: 48037
Re: A music store has 90 different CD's. If an average price is $12 per CD [#permalink] Show Tags 23 Jul 2018, 22:00 shrive555 wrote: A music store has 90 different CD's. If an average price is$12 per CD and 20 of the most expensive ones are $20 each, what is the average price of the remaining CD's? A. 8.33 B. 8.75 C. 9.23 D. 9.71 E. 10.07 M06-33 The sum of the prices of all CD's is $$90 * 12 = 1,080$$. The sum of the prices of the most expensive CD's is$400. So, $$1,080 - 400 = 680$$ is left for 70 remaining CD's. Thus the average price is $$\frac{680}{70} = 9.71$$

_________________

Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne 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®.