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PS OG Question: A big fight at home on this issue
[#permalink]
Updated on: 28 Jan 2006, 11:23
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Hi all I think OG has lost it with this question. I don't agree that their answer is right. I think its not possible to find the answer with the options.. We have had a big fight over this at my home.. One thinks the answer is right, I think its wrong:
So here goes the question..
Q) In a nationwide poll, N people were interviewed. If 1/4 of them answered yes to question 1, and of those, 1/3 answered yes to question 2, which of the following expressions represents the number of people interviewed who did not answer yes to both questions?
a) N/7
b) 6N/7
c) 5n/12
d) 7N/12
e) 11N/12
I think it is none of these.. Please explain as to why it is 11N/12
Please explain.. before we have a third world war at home!
I tyhink it isall interpretation of this question.. confusing! I am going to be online for the next 30 mins.. want to solve this before the war goes too far
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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Originally posted by willget800 on 28 Jan 2006, 11:20.
Last edited by willget800 on 28 Jan 2006, 11:23, edited 1 time in total.
Re: PS OG Question: A big fight at home on this issue
[#permalink]
28 Jan 2006, 13:22
willget800 wrote:
Hi all I think OG has lost it with this question. I don't agree that their answer is right. I think its not possible to find the answer with the options.. We have had a big fight over this at my home.. One thinks the answer is right, I think its wrong:
So here goes the question..
Q) In a nationwide poll, N people were interviewed. If 1/4 of them answered yes to question 1, and of those, 1/3 answered yes to question 2, which of the following expressions represents the number of people interviewed who did not answer yes to both questions?
a) N/7 b) 6N/7 c) 5n/12 d) 7N/12 e) 11N/12
I think it is none of these.. Please explain as to why it is 11N/12
Please explain.. before we have a third world war at home!
I tyhink it isall interpretation of this question.. confusing! I am going to be online for the next 30 mins.. want to solve this before the war goes too far
Willget....
I took quite some time understanding this problem...and when i did..i cursed myself...for wasting so much time on this silly problem
it goes like this....
it says...1/3 of the ppl for the question1 right...ok fine....
but then it says...1/4 of that 1/3 also got the 2nd question rite...
1/4*1/3 = 1/12
so this 1/12 includes total of ppl who got both question 1 and 2 rite...
so no of ppl who got both wrong = 1-1/12 = 11/12
thats it .....
u can go and compromise with that person...he/she is rite !!
Re: PS OG Question: A big fight at home on this issue
[#permalink]
29 Jan 2006, 20:38
willget800 wrote:
number of people interviewed who did not answer yes to both questions?
the key here is that this phrase can be ambiguous. is this question asking for the number of people who answered No-No or is it asking for people who didn't answer Yes-Yes (as in number of people who answered Yes-No, No-Yes, and No-No)
this is just a bad question depends on how u read the sentence the meaning is different:
who did not, answer yes to both. (YN,NY,NN)
who did not answer yes, to both. (NN)
but since there is no answer choice with 'not enough information', one will have to assume the test makers meant the first case. It is unfortunate though if you just happen to take the second meaning, because you will end up wasting a lot of time just to realize that you took the wrong fork created by an ambiguous question.
I suppose the moral of the story is to identify when ambiguities exist before commiting too much time to one interpretation.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
gmatclubot
Re: PS OG Question: A big fight at home on this issue [#permalink]