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

It is currently 20 Aug 2019, 00:59

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.

Close

Request Expert Reply

Confirm Cancel

A certain car averages 25 miles per gallon when driving in

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Director
Director
User avatar
S
Joined: 17 Dec 2012
Posts: 630
Location: India
Re: A certain car averages 25 miles per gallon when driving in  [#permalink]

Show Tags

New post 29 May 2017, 03:22
leafsrule99 wrote:
A certain car averages 25 miles per gallon when driving in the city and 40 miles per gallon when driving 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 then 50 miles on the highway?

A. 28
B. 30
C. 33
D. 36
E. 38

1. Since mileage is varying according to city or highway, average is calculated by total miles traveled / total gallons used
2. Total miles traveled=60
3. total gallons used = gallons used in city + gallons used in highway= 10/25 + 50/40= 33/20
4. So average is 60/(33/20)=36(approx)
_________________
Srinivasan Vaidyaraman
Sravna Test Prep
http://www.sravnatestprep.com

Holistic and Systematic Approach
Retired Moderator
avatar
P
Joined: 17 Jun 2016
Posts: 502
Location: India
GMAT 1: 720 Q49 V39
GMAT 2: 710 Q50 V37
GPA: 3.65
WE: Engineering (Energy and Utilities)
GMAT ToolKit User Reviews Badge
Re: A certain car averages 25 miles per gallon when driving in  [#permalink]

Show Tags

New post 25 Jun 2017, 12:42
leafsrule99 wrote:
A certain car averages 25 miles per gallon when driving in the city and 40 miles per gallon when driving 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 then 50 miles on the highway?

A. 28
B. 30
C. 33
D. 36
E. 38


Refer to the solution in the picture
Attachments

Solution gallons.jpeg
Solution gallons.jpeg [ 28.83 KiB | Viewed 425 times ]


_________________
Intern
Intern
avatar
B
Joined: 15 May 2012
Posts: 20
Re: A certain car averages 25 miles per gallon when driving in  [#permalink]

Show Tags

New post 24 Jan 2018, 20:52
Bunuel

Can this question be solved by Alligation?
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 12038
Re: A certain car averages 25 miles per gallon when driving in  [#permalink]

Show Tags

New post 08 Mar 2019, 08:40
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Bot
Re: A certain car averages 25 miles per gallon when driving in   [#permalink] 08 Mar 2019, 08:40

Go to page   Previous    1   2   [ 24 posts ] 

Display posts from previous: Sort by

A certain car averages 25 miles per gallon when driving in

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





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