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

 It is currently 10 Dec 2018, 12:48

### 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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Free lesson on number properties

December 10, 2018

December 10, 2018

10:00 PM PST

11:00 PM PST

Practice the one most important Quant section - Integer properties, and rapidly improve your skills.
• ### Free GMAT Prep Hour

December 11, 2018

December 11, 2018

09:00 PM EST

10:00 PM EST

Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.

# A Prototype fuel-efficient car (P-Car) is estimated to get 80% more

Author Message
TAGS:

### Hide Tags

Intern
Joined: 09 Jul 2013
Posts: 10
Concentration: Human Resources, Entrepreneurship
Schools: ISB '14
A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

08 Aug 2013, 00:21
2
7
00:00

Difficulty:

55% (hard)

Question Stats:

70% (02:33) correct 30% (02:58) wrong based on 166 sessions

### HideShow timer Statistics

A Prototype fuel-efficient car (P-Car) is estimated to get 80% more miles per gallon of gasoline than does a traditional fuel-efficient car (T-Car). However, the P-Car requires a special type of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car. If the two cars are driven the same distance, what percent less than the money spent on gasoline for the T-Car is the money spent on gasoline for the P-Car?

A) 16 2/3%
B) 33 1/3 %
C) 50%
D) 60%
E) 66 2/3 %
Director
Joined: 14 Dec 2012
Posts: 758
Location: India
Concentration: General Management, Operations
GMAT 1: 700 Q50 V34
GPA: 3.6
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

Updated on: 08 Aug 2013, 00:34
2
aparnaharish wrote:
A Prototype fuel-efficient car (P-Car) is estimated to get 80% more miles per gallon of gasoline
than does a traditional fuel-efficient car (T-Car). However, the P-Car requires a special type
of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car. If the two
cars are driven the same distance, what percent less than the money spent on gasoline for the
T-Car is the money spent on gasoline for the P-Car?

A) 16 2/3%
B) 33 1/3 %
C) 50%
D) 60%
E) 66 2/3 %

let say T car travel 100 miles with 100 $gasoline therefore according to quest P car will travell 180(80%more) mile and gasoline cost will be 120(20%more) therfore p car will travel $$100$$ miles in $$(120/180)*100$$$= $$200/3$$ $difference of money for both cars travelling for 100 miles = 100-(200/3) = 100/3 so percentage less will be ((100/3)/100)*100 (DENOMINATOR IS 100 as cost for T was 100$...and multiplying by 100 in order to take out the percent value)
= 33 1/3

hence B
_________________

When you want to succeed as bad as you want to breathe ...then you will be successfull....

GIVE VALUE TO OFFICIAL QUESTIONS...

learn AWA writing techniques while watching video : http://www.gmatprepnow.com/module/gmat-analytical-writing-assessment

Originally posted by blueseas on 08 Aug 2013, 00:33.
Last edited by blueseas on 08 Aug 2013, 00:34, edited 1 time in total.
Intern
Joined: 26 May 2010
Posts: 10
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

08 Aug 2013, 00:33
2
Assumption

Miles/Gallon
T = 100
P = 180 ( 80% more)

$/gallon T = 100 P = 120 (20% more) Miles 100 for both Cost = (Miles X$/ Gallon)/ M/gallon

T = 100
P = 66.67

Hence 100 - 66.67 = 33.3 = 33 1/3%

Ans B

Consider Kudos for explanation
VP
Status: Far, far away!
Joined: 02 Sep 2012
Posts: 1063
Location: Italy
Concentration: Finance, Entrepreneurship
GPA: 3.8
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

08 Aug 2013, 00:37
$$miles=gallons*MPG$$.

$$G_p*MPG_p=G_t*MPG_t$$ with the data we know that $$G_p*1.8=G_t$$, $$\frac{G_p}{G_t}=\frac{1}{1.8}$$.

We know also that $$price_p=1.2*price_t$$so the cost is (price*number of gallons)$$\frac{P}{T}=\frac{Price_p}{Price_t}*\frac{G_p}{G_t}=\frac{1.2}{1.8}=\frac{2}{3}$$ or 1/3 (33.3%) less.
_________________

It is beyond a doubt that all our knowledge that begins with experience.

Kant , Critique of Pure Reason

Tips and tricks: Inequalities , Mixture | Review: MGMAT workshop
Strategy: SmartGMAT v1.0 | Questions: Verbal challenge SC I-II- CR New SC set out !! , My Quant

Rules for Posting in the Verbal Forum - Rules for Posting in the Quant Forum[/size][/color][/b]

Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 8656
Location: Pune, India
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

08 Aug 2013, 23:24
2
1
aparnaharish wrote:
A Prototype fuel-efficient car (P-Car) is estimated to get 80% more miles per gallon of gasoline
than does a traditional fuel-efficient car (T-Car). However, the P-Car requires a special type
of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car. If the two
cars are driven the same distance, what percent less than the money spent on gasoline for the
T-Car is the money spent on gasoline for the P-Car?

A) 16 2/3%
B) 33 1/3 %
C) 50%
D) 60%
E) 66 2/3 %

Or you can plug in numbers:

P-Car is estimated to get 80% more miles per gallon of gasoline than does a traditional fuel-efficient car (T-Car) - So if T-Car gets 10 miles per gallon, P-Car gets 18 miles per gallon.

P-Car requires a special type of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car - So if T-Car gasoline costs $1 per gallon, P-Car gasoline costs$1.2 per gallon.

T-Car runs 10 miles in $1 i.e. 180 miles in$18
P-Car runs 18 miles in $1.2 i.e. 180 miles in$12

P-Car costs (6/18)*100 = 33.33% less
_________________

[b]Karishma
Veritas Prep GMAT Instructor

Senior Manager
Joined: 10 Jul 2013
Posts: 315
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

09 Aug 2013, 01:46
aparnaharish wrote:
A Prototype fuel-efficient car (P-Car) is estimated to get 80% more miles per gallon of gasoline
than does a traditional fuel-efficient car (T-Car). However, the P-Car requires a special type
of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car. If the two
cars are driven the same distance, what percent less than the money spent on gasoline for the
T-Car is the money spent on gasoline for the P-Car?

A) 16 2/3%
B) 33 1/3 %
C) 50%
D) 60%
E) 66 2/3 %

..........
solution:
(1-2/3)/1 * 100 = 33.33%
_________________

Asif vai.....

Intern
Joined: 20 Mar 2013
Posts: 4
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

12 Aug 2013, 18:12
VeritasPrepKarishma wrote:
aparnaharish wrote:
A Prototype fuel-efficient car (P-Car) is estimated to get 80% more miles per gallon of gasoline
than does a traditional fuel-efficient car (T-Car). However, the P-Car requires a special type
of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car. If the two
cars are driven the same distance, what percent less than the money spent on gasoline for the
T-Car is the money spent on gasoline for the P-Car?

A) 16 2/3%
B) 33 1/3 %
C) 50%
D) 60%
E) 66 2/3 %

Or you can plug in numbers:

P-Car is estimated to get 80% more miles per gallon of gasoline than does a traditional fuel-efficient car (T-Car) - So if T-Car gets 10 miles per gallon, P-Car gets 18 miles per gallon.

P-Car requires a special type of gasoline that costs 20% more per gallon than does the gasoline used by a T-Car - So if T-Car gasoline costs $1 per gallon, P-Car gasoline costs$1.2 per gallon.

T-Car runs 10 miles in $1 i.e. 180 miles in$18
P-Car runs 18 miles in $1.2 i.e. 180 miles in$12

P-Car costs (6/18)*100 = 33.33% less

Hi VeritasPrepKarishma,

I solved exactly the same way as you did, however I am unable to calculate the percent difference.
Car T - 10 miles and car P - 18 miles. I assumed the cost for one gallon as 20 for T and 24 for P . Hence for a distance of 100 miles, car T uses $200 and car P uses$400/3. But when I find the percent difference which is (200-400/3)/ 200 = 33%
Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 8656
Location: Pune, India
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

12 Aug 2013, 20:32
1
Diipz wrote:

Hi VeritasPrepKarishma,

I solved exactly the same way as you did, however I am unable to calculate the percent difference.
Car T - 10 miles and car P - 18 miles. I assumed the cost for one gallon as 20 for T and 24 for P . Hence for a distance of 100 miles, car T uses $200 and car P uses$400/3. But when I find the percent difference which is (200-400/3)/ 200 = 33%

I don't see any problem here. You got the % difference as 1/3 which is 33.33%. This is the correct answer.
_________________

[b]Karishma
Veritas Prep GMAT Instructor

SVP
Joined: 06 Sep 2013
Posts: 1728
Concentration: Finance
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

30 May 2014, 12:34
1
Let's say that T car is driven at 10mpg while P car is driven at 18mpg.

Now, then Let's also assume that T car's gallon costs 10 bucks wihle P car gallon costs 12 bucks.

Finally, let's assume that the total distance is 180. Therefore P car will spend 120 and T car will spend 180. Therefore the difference is 60/180=33.3%.

Hope this helps
Non-Human User
Joined: 09 Sep 2013
Posts: 9097
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more  [#permalink]

### Show Tags

01 Dec 2017, 01:01
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.
_________________
Re: A Prototype fuel-efficient car (P-Car) is estimated to get 80% more &nbs [#permalink] 01 Dec 2017, 01:01
Display posts from previous: Sort by