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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

In the first week of last month, Company X realized an avera [#permalink]
18 Nov 2011, 12:59

3

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

55% (hard)

Question Stats:

55% (02:22) correct
45% (01:23) wrong based on 61 sessions

In the first week of last month, Company X realized an average wholesale profit of $5304 per day from the sale of q units of Product Y. Which of the following CANNOT be the difference between Product Y’s sale price and cost per unit?

Re: 1st week of last month [#permalink]
18 Nov 2011, 16:03

1

This post received KUDOS

The wholesale profit is given to be $5304. The question also defines the number of units sold as q.

Let p represent the difference between Product Y's sale price and the cost per unit (i.e. the profit per unit).

q * p = total profit = 5304

Since we know q has to be a positive integer, and the only options provided for the value of p are integers, we can break the wholesale profit down into its prime factorability (word?) to determine what the possible values of q are.

Re: 1st week of last month [#permalink]
19 Nov 2011, 10:30

q*(s-c) = 5304 q = 5304/(s-c)

Since q must be integer, 5304 must be divisible by (s-c). Plug in answer choices. 5304 is not divisible by 7 and 11. Therefore, neither 7 nor 11 can be s-c.

Re: 1st week of last month [#permalink]
22 Feb 2013, 16:15

enigma123 wrote:

Thanks AKProdigy87 and I agree not a very good question Kostyan.

I respectfully disagree. It's a great question.

The key operator that everyone seems to have missed is the "average". The average profit of $5304 per day is equivalent to a total profit of $37128 for the whole week. Therefore, the difference between sale price and cost per unit is equal to $37128, which is divisible by all of the answer choices, except for 11.

Re: In the first week of last month, Company X realized an avera [#permalink]
23 Feb 2013, 04:51

Expert's post

enigma123 wrote:

In the first week of last month, Company X realized an average wholesale profit of $5304 per day from the sale of q units of Product Y. Which of the following CANNOT be the difference between Product Y’s sale price and cost per unit?

(A) $3 (B) $4 (C) $7 (D) $11 (E) $51

Notice that the difference between sale price and cost per unit is the profit per unit. So, we are asked to find which of the options cannot be the profit per unit.

Now, since the average daily profit was $5304, then the profit per week was $7*5304=7*(2^3*3*13*17).

We also know that these profit was generated from the sale of q units, thus q=(profit per week)/(profit per unit)=7*(2^3*3*13*17)/(profit per unit).

q=(# of units sold)=integer, thus from the options presented profit per unit cannot be 11 because in this case q won't be an integer.

Re: In the first week of last month, Company X realized an avera [#permalink]
03 Mar 2015, 04:34

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. _________________

The Importance of Financial Regulation : Before immersing in the technical details of valuing stocks, bonds, derivatives and companies, I always told my students that the financial system is...

One question I get a lot from prospective students is what to do in the summer before the MBA program. Like a lot of folks from non traditional backgrounds...