Author 
Message 
TAGS:

Hide Tags

Senior Manager
Joined: 07 Nov 2009
Posts: 305

If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
16 Apr 2012, 09:37
3
This post was BOOKMARKED
Question Stats:
70% (01:58) correct
30% (00:52) wrong based on 230 sessions
HideShow timer Statistics
If a certain charity collected a total of 360 books, videos, and board games, how many videos did the charity collect? (1) The number of books that the charity collected was 40 percent of the total number of books, videos, and board games that the charity collected. (2) The number of books that charity collected was 66 32 percent of the total number of videos and board games that charity collected.
Official Answer and Stats are available only to registered users. Register/ Login.



Senior Manager
Joined: 13 Mar 2012
Posts: 357
Concentration: Operations, Strategy

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
17 Apr 2012, 01:11
rohitgoel15 wrote: If a certain charity collected a total of 360 books, videos, and board games, how many videos did the charity collect?
(1) The number of books that the charity collected was 40 percent of the total number of books, videos, and board games that the charity collected.
(2) The number of books that charity collected was 66 32percent of the total number of videos and board games that charity collected. 360 = b+v+g 1) we have b but no info for g INSUFFICIENT 2) b= 0.6 (v+g) (ASSUMING THE BOLD PART TO SOME KNOWN VALUE AS ITS NOT CLEAR) g is unknown INSUFFICIENT 1) +2) No info for g INSUFFICIENT hence E
_________________
Practice Practice and practice...!!
If my reply /analysis is helpful>please press KUDOS If there's a loophole in my analysis> suggest measures to make it airtight.



Manager
Joined: 02 Sep 2012
Posts: 248
Location: United States
Concentration: Entrepreneurship, Finance
GMAT Date: 07252013
GPA: 3.83
WE: Architecture (Computer Hardware)

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
26 Jul 2013, 10:36
we get two equations using two statemnets .so we will be able to get value of v and g right?
_________________
"Giving kudos" is a decent way to say "Thanks" and motivate contributors. Please use them, it won't cost you anything



Manager
Joined: 22 Apr 2013
Posts: 88

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
26 Jul 2013, 21:31
rohitgoel15 wrote: If a certain charity collected a total of 360 books, videos, and board games, how many videos did the charity collect?
(1) The number of books that the charity collected was 40 percent of the total number of books, videos, and board games that the charity collected.
(2) The number of books that charity collected was 66 32 percent of the total number of videos and board games that charity collected. skamal7 wrote: we get two equations using two statemnets .so we will be able to get value of v and g right? Statement 1 tells us of the 360 books, videos, and board games, 144 were books. (360 b v g * .4 books = 140 books) That leaves 216 videos and board games. Insufficient. Statement 2 states of that the number of books is 66.32% of the total number of videos and board games, in this case 216 * .6623 = just under 144, but for our purposes 144 books. Insufficient. 1 + 2: 360 = 144 books + 216 videos and board games. We don't have enough information to tell us how many of the 216 remaining items are videos or board games.
_________________
I do not beg for kudos.



Senior Manager
Joined: 04 May 2013
Posts: 354
Location: India
Concentration: Operations, Human Resources
GPA: 4
WE: Human Resources (Human Resources)

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
19 Aug 2013, 19:24
could some instructor please explain:
three equations have been formed
1. from question stem. B+V+G =360 2. from statement 1. B= 144 NOT SUFF ALONE 3. from statement 2. B= .66( V+G) NOT SUFF ALONE
Now, i just saw 3 equations , and 3 variables. and proceeded that with 3 equations 3 variables can be found and , therefore , chose 'C' as the answer. Why did it go wrong?
pl help with the explanation.....



Math Expert
Joined: 02 Sep 2009
Posts: 39751

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
20 Aug 2013, 02:03
semwal wrote: could some instructor please explain:
three equations have been formed
1. from question stem. B+V+G =360 2. from statement 1. B= 144 NOT SUFF ALONE 3. from statement 2. B= .66( V+G) NOT SUFF ALONE
Now, i just saw 3 equations , and 3 variables. and proceeded that with 3 equations 3 variables can be found and , therefore , chose 'C' as the answer. Why did it go wrong?
pl help with the explanation..... The point is that we don't have 3 distinct equations: the third equation is the same as the second one. If a certain charity collected a total of 360 books, videos, and board games, how many videos did the charity collect?Given: B + V + G = 360. (1) The number of books that the charity collected was 40 percent of the total number of books, videos, and board games that the charity collected > B = 2/5*360 > B = 144. Not sufficient. (2) The number of books that charity collected was 66 2/3 percent of the total number of videos and board games that charity collected > B = 2/3*(V + G) > B = 2/3*(360  B) > B = 144. Not sufficient. (1)+(2) We only know that B = 144 and B + V + G = 360 (V + G = 216) > we cannot solve for V. Not sufficient. Answer: E. Hope it's clear.
_________________
New to the Math Forum? Please read this: 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.
What are GMAT Club Tests? Extrahard Quant Tests with Brilliant Analytics



Senior Manager
Joined: 04 May 2013
Posts: 354
Location: India
Concentration: Operations, Human Resources
GPA: 4
WE: Human Resources (Human Resources)

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
20 Aug 2013, 06:49
thanks a lot..... indeed it is imp to check the three eqns whether they are distinct before deciding on outcome....



GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16024

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
03 Jan 2015, 21:04
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.
_________________
GMAT Books  GMAT Club Tests  Best Prices on GMAT Courses  GMAT Mobile App  Math Resources  Verbal Resources



GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16024

Re: If a certain charity collected a total of 360 books, videos [#permalink]
Show Tags
10 Oct 2016, 23:21
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.
_________________
GMAT Books  GMAT Club Tests  Best Prices on GMAT Courses  GMAT Mobile App  Math Resources  Verbal Resources




Re: If a certain charity collected a total of 360 books, videos
[#permalink]
10 Oct 2016, 23:21







