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

It is currently 21 Oct 2014, 13:44

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

a certain car averages 25 miles per gallon of gasoline when

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 17 Jul 2006
Posts: 28
Followers: 0

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

a certain car averages 25 miles per gallon of gasoline when [#permalink] New post 11 Sep 2006, 13:28
a certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. according to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and 50 miles on the highway?

28
30
33
36
38
VP
VP
User avatar
Joined: 02 Jun 2006
Posts: 1270
Followers: 2

Kudos [?]: 39 [0], given: 0

 [#permalink] New post 11 Sep 2006, 13:40
D. 36

Read the question very slowly:

City mileage : 25 mpg
Hwy mileage: 40 mpg

Avg Mileage = Total Dist/total Gas

Total Distance = 10 + 50 = 60

Total Gas = 10/25+50/40 = 330/200

Avg Mileage = 60x200/330 = 36.6
Approx. 36
Manager
Manager
User avatar
Joined: 25 May 2006
Posts: 227
Followers: 1

Kudos [?]: 15 [0], given: 0

 [#permalink] New post 11 Sep 2006, 15:40
Haas is correct, 36 it is.

City: X
Higway Y


Efficency:
X: 25mpg --> so 10 miles will consume 10/25g = 2/5g
Y: 40mpg --> so 50 miles will consume 50/40g = 5/4g

Average: 60/(2/5+5/4) = 1200/33 = 400/11 = 36.xxx
_________________

Who is John Galt?

Senior Manager
Senior Manager
User avatar
Joined: 31 Jul 2006
Posts: 440
Followers: 3

Kudos [?]: 9 [0], given: 0

Re: gmat prep --- miles per gallon question [#permalink] New post 11 Sep 2006, 16:21
cejismundo wrote:
a certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. according to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and 50 miles on the highway?

28
30
33
36
38


hehe it took me several minutes to get this one right.. and i use this almost everyday :roll: at the pump
VP
VP
User avatar
Joined: 02 Jun 2006
Posts: 1270
Followers: 2

Kudos [?]: 39 [0], given: 0

Re: gmat prep --- miles per gallon question [#permalink] New post 11 Sep 2006, 16:25
One lesson I have learnt is that for PS questions which are long on the GMAT... read very very slowly. Its ok to take 30seconds more to read, but read it carefully.

I myself need to learn that lesson well... :)


Nsentra wrote:
cejismundo wrote:
a certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. according to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and 50 miles on the highway?

28
30
33
36
38


hehe it took me several minutes to get this one right.. and i use this almost everyday :roll: at the pump
Re: gmat prep --- miles per gallon question   [#permalink] 11 Sep 2006, 16:25
    Similar topics Author Replies Last post
Similar
Topics:
A certain car averages 25 miles per gallon of gasoline when tarek99 3 07 Apr 2008, 03:47
A certain car averages 25 miles per gallon of gasoline when mnsinger 6 13 Nov 2007, 17:25
A certain car averages 25miles per gallon of gasoline when Hermione 5 30 Nov 2006, 08:41
A certain car averages 25 miles per gallon of gasoline when pelihu 6 06 Aug 2006, 18:46
A certain car averages 25 miles per gallon of gasoline when mophead 3 28 Aug 2005, 05:36
Display posts from previous: Sort by

a certain car averages 25 miles per gallon of gasoline when

  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®.