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

It is currently 19 Oct 2019, 08:35

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 can currently travel 17 miles per gallon of

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

Hide Tags

Find Similar Topics 
Manager
Manager
avatar
B
Joined: 21 Feb 2012
Posts: 67
Location: Canada
Concentration: Finance, General Management
GMAT 1: 600 Q49 V23
GPA: 3.8
WE: Information Technology (Computer Software)
A certain car can currently travel 17 miles per gallon of  [#permalink]

Show Tags

New post 10 May 2012, 04:18
3
5
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

66% (01:30) correct 34% (01:31) wrong based on 228 sessions

HideShow timer Statistics

A certain car can currently travel 17 miles per gallon of gasoline. After a tune up, the car will use 80 percent as much gasoline as it does now. How many miles will the car be able to travel per gallon of gasoline after the tune up?

A. 13.6
B. 15
C. 20.4
D. 21.25
E. 23.5
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58445
A certain car can currently travel 17 miles per gallon of  [#permalink]

Show Tags

New post 10 May 2012, 04:29
2
piyushksharma wrote:
A certain car can currently travel 17 miles per gallon of gasoline. After a tune up, the car will use 80 percent as much gasoline as it does now. How many miles will the car be able to travel per gallon of gasoline after the tune up?

A. 13.6
B. 15
C. 20.4
D. 21.25
E. 23.5


Currently: 1 gallon = 17 miles;
After the tune up: 0.8 gallons = 17 miles --> 1 gallon = 17/0.8 = 17*5/4 = 21.25 miles.

Answer: D.
_________________
Intern
Intern
avatar
Joined: 07 Sep 2013
Posts: 22
Concentration: Entrepreneurship
GPA: 3.52
Re: A certain car can currently travel 17 miles per gallon of  [#permalink]

Show Tags

New post 12 Sep 2013, 22:23
1
We're told 17 miles per 1 gallon

After the tuneup we can get 17 miles per .8 gallons

So, if 17 miles = .8 gallons
Then 170 miles = 8 gallons

170/8 = 1 gallon

170/8 = 85/4 = 21.25

Choice D

t1000
Board of Directors
User avatar
P
Joined: 17 Jul 2014
Posts: 2509
Location: United States (IL)
Concentration: Finance, Economics
GMAT 1: 650 Q49 V30
GPA: 3.92
WE: General Management (Transportation)
GMAT ToolKit User Reviews Badge
Re: A certain car can currently travel 17 miles per gallon of  [#permalink]

Show Tags

New post 06 Feb 2016, 10:23
oh man..after a break...even such problems make me think whether I am dumb or not...
i used a chart to solve it:

Rate | Gallons | Distance
17/1 | 1 | 17
17/0.8 | 0.8 | 17

17* 10/8 = 170/8 = 21.25

D.
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 13278
Re: A certain car can currently travel 17 miles per gallon of  [#permalink]

Show Tags

New post 13 Mar 2018, 10:38
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 can currently travel 17 miles per gallon of   [#permalink] 13 Mar 2018, 10:38
Display posts from previous: Sort by

A certain car can currently travel 17 miles per gallon of

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





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