• Get 300+ Practice Questions

Available with Beat the GMAT members only code

• Free Trial & Practice Exam
BEAT THE GMAT EXCLUSIVE

Available with Beat the GMAT members only code

• Most awarded test prep in the world
Now free for 30 days

Available with Beat the GMAT members only code

• Free Veritas GMAT Class
Experience Lesson 1 Live Free

Available with Beat the GMAT members only code

• 1 Hour Free
BEAT THE GMAT EXCLUSIVE

Available with Beat the GMAT members only code

• Award-winning private GMAT tutoring
Register now and save up to $200 Available with Beat the GMAT members only code • 5 Day FREE Trial Study Smarter, Not Harder Available with Beat the GMAT members only code • Free Practice Test & Review How would you score if you took the GMAT Available with Beat the GMAT members only code • 5-Day Free Trial 5-day free, full-access trial TTP Quant Available with Beat the GMAT members only code • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code ## A collection of books went on sale. . . . tagged by: rolandprowess This topic has 5 expert replies and 0 member replies ### Top Member Vincen Legendary Member Joined 07 Sep 2017 Posted: 550 messages Upvotes: 6 #### A collection of books went on sale. . . . Tue Oct 03, 2017 6:06 pm A collection of books went on sale, and 2/3 of them were sold for$2.50 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold?

A) $180 B)$135
C) $90 D)$60
E) $54 The OA is A. 36 is 1/3 of the total of books? Am I right? ### GMAT/MBA Expert Matt@VeritasPrep GMAT Instructor Joined 12 Sep 2012 Posted: 2640 messages Followed by: 113 members Upvotes: 625 Target GMAT Score: V51 GMAT Score: 780 Wed Oct 11, 2017 5:46 pm Vincen wrote: A collection of books went on sale, and 2/3 of them were sold for$2.50 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold?

A) $180 B)$135
C) $90 D)$60
E) $54 The OA is A. 36 is 1/3 of the total of books? Am I right? You are right! Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! ### GMAT/MBA Expert Scott@TargetTestPrep GMAT Instructor Joined 25 Apr 2015 Posted: 781 messages Followed by: 3 members Upvotes: 43 Mon Oct 09, 2017 4:18 pm Vincen wrote: A collection of books went on sale, and 2/3 of them were sold for$2.50 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold?

A) $180 B)$135
C) $90 D)$60
E) $54 Since 2/3 of the books were sold, 1/3 of them were not, and that represents the 36 remaining books. We see that 72 books were sold (since 2/3 is twice 1/3, and 72 is twice 36). Thus, 72 x 2.50 =$180 was made on the sale of those books.

_________________
Scott Woodbury-Stewart Founder and CEO

### GMAT/MBA Expert

DavidG@VeritasPrep Legendary Member
Joined
14 Jan 2015
Posted:
2613 messages
Followed by:
118 members
1153
GMAT Score:
770
Wed Oct 04, 2017 6:02 am
Vincen wrote:
A collection of books went on sale, and 2/3 of them were sold for $2.50 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold? A)$180
B) $135 C)$90
D) $60 E)$54

The OA is A.

36 is 1/3 of the total of books? Am I right?
Yep. If 36 is 1/3 of the total, then 2/3 of the total would be double 36, or 72. So we want 72* 2.50. Well, 72*2 is 144, so we know the answer is more than that. Has to be A

_________________
Veritas Prep | GMAT Instructor

Veritas Prep Reviews
Save $100 off any live Veritas Prep GMAT Course Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! ### GMAT/MBA Expert Rich.C@EMPOWERgmat.com Elite Legendary Member Joined 23 Jun 2013 Posted: 9184 messages Followed by: 472 members Upvotes: 2867 GMAT Score: 800 Wed Oct 04, 2017 9:33 am Hi Vincen, The answer choices to this question are 'spread out' enough that you can use approximation to get to the correct answer. You are correct that 36 books represents 1/3 of the total books. If we 'round down' to 30, and 1/3 of the books = 30, then 2/3 = 60. At$2.50 each, 60 books would be $150. Since we know that were would actually be MORE than 60 books sold though, the total revenue would have to be GREATER than$150. There's only one answer that fits...

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

_________________
Contact Rich at Rich.C@empowergmat.com

### GMAT/MBA Expert

EconomistGMATTutor GMAT Instructor
Joined
04 Oct 2017
Posted:
543 messages
Followed by:
10 members
180
Sat Oct 07, 2017 10:23 am
Vincen wrote:
A collection of books went on sale, and 2/3 of them were sold for $2.50 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold? A)$180
B) $135 C)$90
D) $60 E)$54

The OA is A.

36 is 1/3 of the total of books? Am I right?
Hi Vincen,
Let's take a look at your question.

You are correct that 36 is actually 1/3 of the total books.
Let 'x' be the total books then we can write:
x (1/3) = 36
x= (3)(36) = 108

It means the collection of books contains a total of 108 books.

The question states that 2/3 of them were sold each of $2.50 Number of sold books = 108 x (2/3) = 36 x 2 = 72 books Now we can calculate the total amount received for the books that were sold. = 72 x 2.50 =$180

Therefore, Option A is correct.

I am available if you'd like any followup.

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

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.

### Best Conversation Starters

1 lheiannie07 112 topics
2 ardz24 71 topics
3 Roland2rule 69 topics
4 LUANDATO 53 topics
5 swerve 45 topics
See More Top Beat The GMAT Members...

### Most Active Experts

1 GMATGuruNY

The Princeton Review Teacher

154 posts
2 Rich.C@EMPOWERgma...

EMPOWERgmat

107 posts
3 Jeff@TargetTestPrep

Target Test Prep

106 posts
4 Scott@TargetTestPrep

Target Test Prep

98 posts
5 EconomistGMATTutor

The Economist GMAT Tutor

91 posts
See More Top Beat The GMAT Experts