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In a certain classroom, there are 80 books, of which 24 are

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In a certain classroom, there are 80 books, of which 24 are  [#permalink]

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New post 09 Jun 2010, 12:00
2
5
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A
B
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D
E

Difficulty:

  25% (medium)

Question Stats:

80% (01:57) correct 20% (01:46) wrong based on 314 sessions

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In a certain classroom, there are 80 books, of which 24 are fiction and 23 are written in Spanish. How many of the fiction books are written in Spanish?

(1) Of the fiction books, there are 6 more that are not written in Spanish than are written in Spanish.
(2) Of the books written in Spanish, there are 5 more nonfiction books than fiction books.

Official Guide 12 Question

GMAT Official Guide 12

Question: 47
Page: 26
Difficulty: 700

Find All Official Guide Questions

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Re: In a certain classroom, there are 80 books, of which 24 are  [#permalink]

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New post 09 Jun 2010, 16:17
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1
In a certain classroom, there are 80 books, of which 24 are fiction and 23 are written in Spanish. How many of the fiction books are written in Spanish?

Given:
Attachment:
Fiction1.JPG
Fiction1.JPG [ 10.74 KiB | Viewed 8790 times ]

(1) Of the fiction books, there are 6 more that are not written in Spanish than are written in Spanish.
Attachment:
Fiction2.JPG
Fiction2.JPG [ 10.95 KiB | Viewed 8797 times ]
So, \(x+x+6=24\) --> \(x=9\). Sufficient.

(2) Of the books written in Spanish, there are 5 more nonfiction books than fiction books
Attachment:
Fiction3.JPG
Fiction3.JPG [ 11 KiB | Viewed 8737 times ]
So, \(x+x+5=23\) --> \(x=9\). Sufficient.

Answer: D. (Total # of books is redundant information).

Hope it helps.
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Re: In a certain classroom, there are 80 books, of which 24 are  [#permalink]

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New post 28 Nov 2017, 02:46
mojorising800 wrote:
In a certain classroom, there are 80 books, of which 24 are fiction and 23 are written in Spanish. How many of the fiction books are written in Spanish?

(1) Of the fiction books, there are 6 more that are not written in Spanish than are written in Spanish.
(2) Of the books written in Spanish, there are 5 more nonfiction books than fiction books.

Official Guide 12 Question

GMAT Official Guide 12

Question: 47
Page: 26
Difficulty: 700

Find All Official Guide Questions

Video Explanations:




OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/in-a-certain ... 35831.html
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: In a certain classroom, there are 80 books, of which 24 are &nbs [#permalink] 28 Nov 2017, 02:46
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