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 500,000 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:

A certain electronic component is sold in boxes of 54 for $16.20 and in boxes of 27 for $13.20. A customer who needed only 54 components for a project had to buy 2 boxes of 27 because boxes of 54 were unavailable . Approximately how much more did the customer pay for each component due to the unavailability of the larger boxes?

(A) $0.33 (B) $0.19 (C) $0.11 (D) $0.06 (E) $0.03

Problem Solving Question: 126 Category:Arithmetic Operations of rational numbers Page: 78 Difficulty: 600

Each week we'll be posting several questions from The Official Guide For GMAT® Quantitative Review, 2ND Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution.

We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation.

A certain electronic component is sold in boxes of 54 for $16.20 and in boxes of 27 for $13.20. A customer who needed only 54 components for a project had to buy 2 boxes of 27 because boxes of 54 were unavailable. Approximately how much more did the customer pay for each component due to the unavailability of the larger boxes?

(A) $0.33 (B) $0.19 (C) $0.11 (D) $0.06 (E) $0.03

Boxes of 54: the price per one component = 16.20/54; Boxes of 27: the price per one component = 13.20/27;

Re: A certain electronic component is sold in boxes of 54 for $1 [#permalink]

Show Tags

09 Mar 2014, 21:13

I just wanted to find the difference in unit price of each scheme. 54 for $16.2 is the same as 27 for $8.1. That's a difference of 5.3 for 27 items, which is just under 20 cents. The answer is B. Laziness ftw! Actually the difference is 5.1. Perhaps too lazy. Still the closest answer though.

Re: A certain electronic component is sold in boxes of 54 for $1 [#permalink]

Show Tags

31 May 2015, 02:10

for me was the part of dividing the most time connsuming... So, may be this will help you also: 10,20/54 = (Divide by 6) = 1,7/9 = 0,19.... It's much easier to delete 1,7 by 9 than 10,20 / 54
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

Share some Kudos, if my posts help you. Thank you !

Re: A certain electronic component is sold in boxes of 54 for $1 [#permalink]

Show Tags

06 Feb 2016, 22:15

Difference in cost per component = (26.40-16.20)/54 = 10.2/54. Now since we notice that the answer choices are well separated, we can go for estimation. 10.2/54 is somewhat smaller than 1/5. The only answer choice that does that is B. So B.

Re: A certain electronic component is sold in boxes of 54 for $1 [#permalink]

Show Tags

16 Jun 2016, 06:18

Top Contributor

I have a query here. Request members to share their inputs. As answer choices are quite far from each other, is it right to approx 10.20/54 ~ 10/54 = .18 (close to option B) ?
_________________

I have a query here. Request members to share their inputs. As answer choices are quite far from each other, is it right to approx 10.20/54 ~ 10/54 = .18 (close to option B) ?

________________ Yes, you can do this.
_________________

Re: A certain electronic component is sold in boxes of 54 for $1 [#permalink]

Show Tags

28 Oct 2017, 07:10

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.
_________________