• 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

In a certain candy store in New York

This topic has 2 expert replies and 0 member replies

In a certain candy store in New York

Post
In a certain candy store in New York, each orange candy costs 30 cents and a strawberry candy costs 40 cents. The store gives an offer that if a customer buys three candies then the cheapest amongst them will not be charged for. What is the difference in the discount received by a customer who buys 2 strawberry candies and an orange candy, and a customer who buys 2 orange candies and a strawberry candy?

A. $0
B. $0.1
C. $0.2
D. $0.3
E. $0.5

OA is A
What could be the best possible approach tom solve this question? An Expert explanation will be appreciated. Thanks

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Post
Hello Roland.

Let's take a look at your question.

There is something that is not clear in the wording. Watching the answers, this PS should be solved like this:

In each case, the orange candy is the cheapest, therefore in both cases, the discount will be 30 cents. Hence, the difference is $0. The correct answer is A.

But, according to the wording, the way it should be solved is the following:

We have that:
- Each orange candy costs 30 cents.
- Each strawberry candy costs 40 cents.

If a customer buys:
- 2 strawberry candies and an orange candy, the total cost will be 110 cents.
- 2 orange candies and a strawberry candy, the total cost will be 100 cents.

Since we know that the store gives the following offer: if a customer buys three candies then the cheapest amongst them will not be charged for, hence the amount paid for each customer is:
- 2 strawberry candies and an orange candy, the new total cost is 80 cents.
- 2 orange candies and a strawberry candy, the new total cost is 70 cents.

This implies that the percentage paid for each customer is:
$$-\ P_1=\frac{80\cdot100}{110}\approx73\%\ \ \ \ \Leftrightarrow\ \ discount_1=27\%.$$
$$-\ P_2=\frac{70\cdot100}{100}\approx70\%\ \ \ \ \Leftrightarrow\ \ discount_2=30\%.$$

The difference in the discount is 3%.

I hope these explanations may help you.

I'm available if you'd like a follow-up.

_________________
GMAT Prep From The Economist
We offer 70+ point score improvement money back guarantee.
Our average student improves 98 points.

  • +1 Upvote Post
  • Quote
  • Flag
Free 7-Day Test Prep with Economist GMAT Tutor - Receive free access to the top-rated GMAT prep course including a 1-on-1 strategy session, 2 full-length tests, and 5 ask-a-tutor messages. Get started now.

GMAT/MBA Expert

Post
Roland2rule wrote:
In a certain candy store in New York, each orange candy costs 30 cents and a strawberry candy costs 40 cents. The store gives an offer that if a customer buys three candies then the cheapest amongst them will not be charged for. What is the difference in the discount received by a customer who buys 2 strawberry candies and an orange candy, and a customer who buys 2 orange candies and a strawberry candy?

A. $0
B. $0.1
C. $0.2
D. $0.3
E. $0.5
With the current deal, if 2 strawberry candies and an orange candy are purchased then the orange candy won’t be charged. If 2 orange candies and a strawberry candy are purchased then one of the orange candies won't be charged.

Thus, the difference in the discounts will be zero.

Answer:A

_________________

Jeffrey Miller
Head of GMAT Instruction
jeff@targettestprep.com



See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

  • +1 Upvote Post
  • Quote
  • Flag
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • 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
  • 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
  • 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

Top First Responders*

1 Ian Stewart 45 first replies
2 Jay@ManhattanReview 35 first replies
3 Brent@GMATPrepNow 34 first replies
4 Scott@TargetTestPrep 31 first replies
5 GMATGuruNY 18 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

109 posts
2 image description Max@Math Revolution

Math Revolution

93 posts
3 image description Ian Stewart

GMATiX Teacher

56 posts
4 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

51 posts
5 image description Jay@ManhattanReview

Manhattan Review

35 posts
See More Top Beat The GMAT Experts