Author 
Message 
TAGS:

Hide Tags

SVP
Joined: 23 Feb 2015
Posts: 2010

50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
Updated on: 03 Jun 2020, 12:27
Question Stats:
82% (00:44) correct 18% (00:48) wrong based on 44 sessions
HideShow timer Statistics
50 animals competed for prizes at a certain fair. How many of the animals won prizes? (1) Of the animals that competed, 100% of the cows won prizes. (2) Of the animals that competed, 50% of the noncows won prizes. Same types question: LINK 1LINK 2
Official Answer and Stats are available only to registered users. Register/ Login.



SVP
Joined: 23 Feb 2015
Posts: 2010

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
28 May 2020, 10:00
Asad wrote: 50 animals competed for prizes at a certain fair. How many of the animals won prizes? 1) Of the animals that competed, 100% of the cows won prizes. 2) Of the animals that competed, 50% of the noncows won prizes. Hello Experts, EMPOWERgmatRichC, VeritasKarishma, IanStewart, chetan2u, ArvindCrackVerbal, GMATinsightI have a query on this question.. We should never keep our eyes on statement 2 when we check statement 1, right? So, how will someone know that there are 2 segment (i.e., cows VS noncows) without reading statement 2? Statement 1 directly says that 100%. That means there is nothing "left". So, why do we not consider statement 1 sufficient (apart from statement 2)? I mean: What's the wrong with someone if s/he takes all 50 animals as 'cows' group? Note: Question prompt did not separate "animals" as 'cows' VS 'noncows'. If statement 1 use 99% then we can think of another groups (i.e., noncows). Also What if there is just 1 animal in the question prompt? Thanks__



GMAT Tutor
Joined: 24 Jun 2008
Posts: 2395

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
28 May 2020, 11:06
Asad wrote: I have a query on this question.. We should never keep our eyes on statement 2 when we check statement 1, right? So, how will someone know that there are 2 segment (i.e., cows VS noncows) without reading statement 2? Because some "animals" are not "cows". An animal might be a parrot or a donkey or an iguana or a fish. That's not something a question needs to tell a test taker. Asad wrote: Statement 1 directly says that 100%. That means there is nothing "left". So, why do we not consider statement 1 sufficient (apart from statement 2)? I mean: What's the wrong with someone if s/he takes all 50 animals as 'cows' group? If Statement 1 said "100% of animals won prizes", it would be sufficient. But it doesn't say that. It only talks about some of the animals, the cows. If someone did assume all 50 animals were cows, that person would be assuming something you don't know to be true; you don't know how all the animals are cows. So that person would be using more information than the question provides, and would thus be making a logical mistake. Asad wrote: Note: Question prompt did not separate "animals" as 'cows' VS 'noncows'. If statement 1 use 99% then we can think of another groups (i.e., noncows). Also What if there is just 1 animal in the question prompt? Thanks__ Statement 1 can't use 99%, since that's mathematically impossible with only 50 animals in total (you'd get a decimal number of cows, which is impossible). If there were only 1 animal in total, Statement 2 wouldn't make any sense. Statement 1 alone would be sufficient in that case, because there can't be zero cows (it doesn't make sense to say "100% of cows won prizes" if there are no cows at all). So you could then conclude that the one animal in question is a cow, and that it won a prize. But you'd never see that situation on the GMAT, so there's no reason to worry about it.
_________________
GMAT Tutor in Montreal
If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com



EMPOWERgmat Instructor
Status: GMAT Assassin/CoFounder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 17283
Location: United States (CA)

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
28 May 2020, 16:14
Asad wrote: Asad wrote: 50 animals competed for prizes at a certain fair. How many of the animals won prizes? 1) Of the animals that competed, 100% of the cows won prizes. 2) Of the animals that competed, 50% of the noncows won prizes. Hello Experts, EMPOWERgmatRichC, VeritasKarishma, IanStewart, chetan2u, ArvindCrackVerbal, GMATinsightI have a query on this question.. We should never keep our eyes on statement 2 when we check statement 1, right? So, how will someone know that there are 2 segment (i.e., cows VS noncows) without reading statement 2? Statement 1 directly says that 100%. That means there is nothing "left". So, why do we not consider statement 1 sufficient (apart from statement 2)? I mean: What's the wrong with someone if s/he takes all 50 animals as 'cows' group? Note: Question prompt did not separate "animals" as 'cows' VS 'noncows'. If statement 1 use 99% then we can think of another groups (i.e., noncows). Also What if there is just 1 animal in the question prompt? Thanks__ Hi Asad, The prompt tells us that 50 ANIMALS competed for prizes. We're asked how MANY animals won prizes. At the start, we have no idea what those 50 animals are (maybe all 50 animals are the same type of animal or maybe it's a 'mix' of animals); in addition, we don't know whether an animal can win MORE than one prize or not. Thus, we'll clearly need some really specific information to answer this question. Fact 1 tells us that 100% OF the COWS won prizes. This tells us very little about the NUMBER of COWS or total winners or total prizes; we know that EVERY COW won at least one prize  but that does NOT mean that all 50 animals were cows (nor does it mean that there were 50 prizes). There could very easily have been OTHER animals competing for prizes. The information in Fact 2 has NO bearing on these deductions. GMAT assassins aren't born, they're made, Rich
_________________
Contact Rich at: Rich.C@empowergmat.comThe Course Used By GMAT Club Moderators To Earn 750+ souvik101990 Score: 760 Q50 V42 ★★★★★ ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★



GMAT Tutor
Joined: 24 Jun 2008
Posts: 2395

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
28 May 2020, 17:45
EMPOWERgmatRichC wrote: in addition, we don't know whether an animal can win MORE than one prize or not.
That is irrelevant; the question asks how many animals won prizes, not how many prizes were awarded.
_________________
GMAT Tutor in Montreal
If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com



PS Forum Moderator
Joined: 18 Jan 2020
Posts: 1542
Location: India
GPA: 4

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
28 May 2020, 20:03
Asad wrote: 50 animals competed for prizes at a certain fair. How many of the animals won prizes?
(1) Of the animals that competed, 100% of the cows won prizes. (2) Of the animals that competed, 50% of the noncows won prizes. I think whole question is based on speculation of "what if". If we exactly don't know what no. Or what constraint is used to define the no. of animals getting awards or how many awards, the question will give no particular answer. Moreover GMAT never goes with speculation. We can't even state an universal truth as one, if it's not mentioned in question. Posted from my mobile device



Math Expert
Joined: 02 Aug 2009
Posts: 8795

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
31 May 2020, 08:20
Asad wrote: Asad wrote: 50 animals competed for prizes at a certain fair. How many of the animals won prizes? 1) Of the animals that competed, 100% of the cows won prizes. 2) Of the animals that competed, 50% of the noncows won prizes. I have a query on this question.. We should never keep our eyes on statement 2 when we check statement 1, right? So, how will someone know that there are 2 segment (i.e., cows VS noncows) without reading statement 2? Statement 1 directly says that 100%. That means there is nothing "left". So, why do we not consider statement 1 sufficient (apart from statement 2)? I mean: What's the wrong with someone if s/he takes all 50 animals as 'cows' group? Note: Question prompt did not separate "animals" as 'cows' VS 'noncows'. If statement 1 use 99% then we can think of another groups (i.e., noncows). Also What if there is just 1 animal in the question prompt? Thanks__ It is not mentioned that animals means just cows, so you cannot make that mistake in DS of reading more than what is given. A similar case would be when we say.. In a class, 100% of girls passed.If we were looking for % of total passed, we cannot say that the class consists of only girls.
_________________



Stern School Moderator
Joined: 26 May 2020
Posts: 334
Concentration: General Management, Technology
WE: Analyst (Computer Software)

Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
Show Tags
31 May 2020, 19:32
Asad wrote: 50 animals competed for prizes at a certain fair. How many of the animals won prizes? (1) Of the animals that competed, 100% of the cows won prizes. (2) Of the animals that competed, 50% of the noncows won prizes. Same types question: LINK 1E IMO. Statement 1 : Of the animals that competed, 100% of the cows won prizes.  we dono how many cows from the animals .. so Insufficient Statement 2 : Of the animals that competed, 50% of the noncows won prizes.  we dono how many non cows from the animals .. so Insufficient Combining both also gives no info about COws and noncows .. We can have 30 cows and 20 noncows  Prizes won = 30 + 10 = 40 Or we can have 20 Cows and 30 noncows  Prizes won = 20 + 15 = 35 . So Combining also not sufficient . Hence E .
_________________
Thank you. Regards, Ashish A Das.
The more realistic you are during your practice, the more confident you will be during the CAT.




Re: 50 animals competed for prizes at a certain fair. How many of the anim
[#permalink]
31 May 2020, 19:32




