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What was the greatest difference between the high and low

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Manager
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What was the greatest difference between the high and low [#permalink] New post 09 Nov 2009, 18:01
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A
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E

Difficulty:

  35% (medium)

Question Stats:

78% (01:57) correct 22% (00:41) wrong based on 36 sessions
What was the greatest difference between the high and low test scores of any particular student in the third grade at PS 11?

(1) The highest test score earned by any student in the third grade at PS 11 was 98.
(2) The lowest test score earned by any student in the third grade at PS 11 was 44.
[Reveal] Spoiler: OA
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Re: Tricky question [#permalink] New post 09 Nov 2009, 19:10
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ezinis wrote:
What was the greatest difference between
the high and low test scores of any particular
student in the third grade at PS 11?
(1) The highest test score earned by any
student in the third grade at PS 11
was 98.
(2) The lowest test score earned by any
student in the third grade at PS 11
was 44.


1. Not Sufficient. Gives the hightest score of any student but doen't say anything about lowest score of that particular 'any student'
2. Not Sufficient. Gives the lowest score of any student but doen't say anything about hightest score of that particular 'any student'

1 & 2 together Not sufficient
It's not clear that hightest and lowest score mentioned in statement 1 and 2 are of same student or of two different students.

I pick E
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Re: Tricky question [#permalink] New post 09 Nov 2009, 19:27
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yep I agree with swatipr, E

note the word "particular" in the question stem
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Re: Tricky question [#permalink] New post 05 May 2011, 21:08
a+b
does not give scores of a particular student.Hence E
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Re: Tricky question [#permalink] New post 07 May 2011, 16:17
1. Not sufficient
as we dont know anything about the low scores.

2. Not sufficient

as we dont know anything about the high scores

together , its still not sufficient

without knowing individual students maximum and minimum, its not possible to find out the difference. hence not sufficient.

Answer is E.
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Re: Tricky question [#permalink] New post 07 May 2011, 18:25
agree with abive - I got it correct. Nice Qn.
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Re: Tricky question [#permalink] New post 09 May 2011, 20:01
E, st1 and st2 together will give info for any student not a particular student.
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Re: Tricky question [#permalink] New post 10 May 2011, 16:14
Hi All - I got C. Here was my reasoning:

It asks for the "greatest difference" of any specific student. When I see greatest difference I see largest difference possible. And the largest possible difference = highest score in class - lowest score in class. And when I see "particular student" I see any possible student. While the assumptions do not specify who received those scores, I don't think that is what the question is asking.

I guess the main thing is I am interpreting the question differently - Am I wrong here?
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Re: Tricky question [#permalink] New post 10 May 2011, 22:27
@stompy
I will try to explain: Suppose there are 3 student in class. YOU, ME and C.
You scored highest=98
Me scored lowest=44
C scored = 50.

You and Me are picked. Greatest difference will be => 98-44= 54.
but suppose You and C are picked. In that case greatest difference will be => 98-50= 48

we don't know two things
1)how many students are there?
2)which two are picked?
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Re: Tricky question [#permalink] New post 10 May 2011, 22:43
Yes, that makes sense. However the question states for a "particular student", not students. I thought we were comparing the scores for one student?
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Re: Tricky question [#permalink] New post 10 May 2011, 23:19
Yes we are but which one? You Me or Me or C or You or C? Question doesn't mention that. So its not sufficient to answer.
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Re: Tricky question   [#permalink] 10 May 2011, 23:19
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