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M22 q15

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M22 q15 [#permalink] New post 18 Dec 2008, 23:10
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Please advise, I don't quite get the question, all of the answer choices except 5.0 cannot be the number added because we know the exact value of the new number added..
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Re: M22 q15 [#permalink] New post 19 Dec 2008, 02:30
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the option is A because we know that the new median is 5 after adding one more number to the series 2, 3, 5, 7 (even terms). After you add one more term lets say x to the series, we get odd terms so the term in between is the median of the given numbers and that is possible only when the number added is greater than or equal to 5 so that the terms in ascending order become 2,3,5,5,7 or 2,3,5,x,7 or 2,3,5,7,x in all these cases the median is 5 but if the term is less than 5 i.e. 4.8 then we get 2,3,4.8,5,7 and hence 4.8 becomes the median.

So the only term that cannot be added for the median to be 5 is 4.8 i.e. option A.
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Re: M22 q15 [#permalink] New post 13 Mar 2010, 16:20
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what is the confusion here>...ans is A.
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Re: M22 q15 [#permalink] New post 14 Mar 2010, 02:51
ddtiku wrote:
the option is A because we know that the new median is 5 after adding one more number to the series 2, 3, 5, 7 (even terms). After you add one more term lets say x to the series, we get odd terms so the term in between is the median of the given numbers and that is possible only when the number added is greater than or equal to 5 so that the terms in ascending order become 2,3,5,5,7 or 2,3,5,x,7 or 2,3,5,7,x in all these cases the median is 5 but if the term is less than 5 i.e. 4.8 then we get 2,3,4.8,5,7 and hence 4.8 becomes the median.

So the only term that cannot be added for the median to be 5 is 4.8 i.e. option A.


Nice explanation...It is A with the same explanation.
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Re: M22 q15 [#permalink] New post 08 Apr 2010, 17:21
The wording of this question is VAGUE because "a set consisting of all one-digit prime integers" could be

( 2, 2, 2, 2, 2) or (3,5,5,5,2,7,7,7) or (3) or (3,5) or (5,5,5) etc....

It should say "a set consisting of all unique one-digit prime integers" or just add the word "the" as in the "a set consisting of all of THE one-digit prime integers". This would limit the set to (2,3,5,7) which is the intention of the question.
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Re: M22 q15 [#permalink] New post 25 May 2014, 13:05
firasath wrote:
The wording of this question is VAGUE because "a set consisting of all one-digit prime integers" could be

( 2, 2, 2, 2, 2) or (3,5,5,5,2,7,7,7) or (3) or (3,5) or (5,5,5) etc....

It should say "a set consisting of all unique one-digit prime integers" or just add the word "the" as in the "a set consisting of all of THE one-digit prime integers". This would limit the set to (2,3,5,7) which is the intention of the question.



Completely agree with you.
Re: M22 q15   [#permalink] 25 May 2014, 13:05
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M22 q15

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