• NEW! FREE Beat The GMAT Quizzes
    NEW! FREE Beat The GMAT Quizzes
    NEW! FREE Beat The GMAT Quizzes
    Hundreds of Questions Highly Detailed Reporting Expert Explanations TAKE A FREE GMAT QUIZ
  • 7 CATs FREE!
    If you earn 100 Forum Points

    Engage in the Beat The GMAT forums to earn
    100 points for $49 worth of Veritas practice GMATs FREE

    Veritas Prep
    VERITAS PRACTICE GMAT EXAMS
    Earn 10 Points Per Post
    Earn 10 Points Per Thanks
    Earn 10 Points Per Upvote
    REDEEM NOW

It costs g cents per mile for gasoline and m cents

This topic has 2 expert replies and 2 member replies

It costs g cents per mile for gasoline and m cents

Post

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Difficult



It costs g cents per mile for gasoline and m cents per mile for all other costs to run a car. How many dollars will it cost to run a car 200 miles?

A. 200m/g
B. 200gm/(g + m)
C. 200gm
D. 200(g + m)
E. 2(g +m)

The OA is the option E.

Why is E? the correct choice should be D. I am confused.

  • +1 Upvote Post
  • Quote
  • Flag
Legendary Member Default Avatar
Joined
07 Sep 2017
Posted:
808 messages
Followed by:
3 members
Upvotes:
6
Top Reply
Post
Hello Vjesus12.

Let's take a look at your question.

We know the following information:

(i) It costs g cents per mile for gasoline
(ii) it costs m cents per mile for all other costs to run a car

And we want to know how many dollars will it cost to run a car 200 miles?

Since the trip was 200 miles long, then the costs are $$200\cdot g\ \ \ \ and\ \ \ \ \ \ 200\cdot m$$ So, the total cost is $$C=200\cdot g+200\cdot m$$ Now $$C=200\cdot\left(g+m\right)\ \ \ cents$$ Now, the question asks for how many dollars, and since 200 cents = 2 dollars we get that the total cost is 2(g+m).

This is why the correct answer is the option E.

I hope it helps you.

  • +1 Upvote Post
  • Quote
  • Flag
Senior | Next Rank: 100 Posts Default Avatar
Joined
02 Jul 2018
Posted:
32 messages
Followed by:
1 members
Post

  • +1 Upvote Post
  • Quote
  • Flag
Post
VJesus12 wrote:
It costs g cents per mile for gasoline and m cents per mile for all other costs to run a car. How many dollars will it cost to run a car 200 miles?

A. 200m/g
B. 200gm/(g + m)
C. 200gm
D. 200(g + m)
E. 2(g +m)
The cost in cents to run a car 200 miles is 200g + 200m, so in dollars that is:

(200g + 200m)/100 = 200(g + m)/100 = 2(g + m)

Answer: E

_________________
Scott Woodbury-Stewart Founder and CEO

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Post
Hi VJesus12,

We're told that it costs G CENTS per mile for gasoline and M CENTS per mile for all other costs to run a car. We're asked for the number of DOLLARS it will cost to run a car 200 miles. This question can be solved in a couple of different ways, including by TESTing VALUES.

IF.... G=2 and M=3
The the cost to run a car for 200 miles would be (2)(200) + (3)(200) = 400 + 600 = 1,000 cents = $10.00

Thus, we're looking for an answer that equals 10 when G=2 and M=3. There's only one answer that matches...

Final Answer: E

GMAT assassins aren't born, they're made,
Rich

_________________
Contact Rich at Rich.C@empowergmat.com

  • +1 Upvote Post
  • Quote
  • Flag
  • The Princeton Review
    FREE GMAT Exam
    Know how you'd score today for $0

    Available with Beat the GMAT members only code

    MORE DETAILS
    The Princeton Review
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors

Top First Responders*

1 GMATGuruNY 54 first replies
2 Brent@GMATPrepNow 41 first replies
3 Jay@ManhattanReview 40 first replies
4 Ian Stewart 30 first replies
5 ceilidh.erickson 16 first replies
* Only counts replies to topics started in last 30 days
See More Top Beat The GMAT Members

Most Active Experts

1 image description Scott@TargetTestPrep

Target Test Prep

197 posts
2 image description fskilnik@GMATH

GMATH Teacher

124 posts
3 image description Max@Math Revolution

Math Revolution

83 posts
4 image description GMATGuruNY

The Princeton Review Teacher

81 posts
5 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

66 posts
See More Top Beat The GMAT Experts