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In a certain pastime

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In a certain pastime

by sanju09 » Thu Oct 06, 2011 2:20 am
In a certain pastime, a contestant can accrue points only by scoring either an M, which counts 3 points, or an N, which counts 2 points. If a contestant scored 24 points in the pastime and x points were made by scoring M's, how many different values could x have?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8
The mind is everything. What you think you become. -Lord Buddha



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by chetansharma » Thu Oct 06, 2011 2:38 am
sanju09 wrote:In a certain pastime, a contestant can accrue points only by scoring either an M, which counts 3 points, or an N, which counts 2 points. If a contestant scored 24 points in the pastime and x points were made by scoring M's, how many different values could x have?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8
IMO the answer shd be A

X has to an even. Only then the points from N can make it 24. (I am assuming that the contenstant has scored only 24. Not beyond that)

Am I correct??

Regards,
Chetan
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by sanju09 » Thu Oct 06, 2011 3:05 am
chetansharma wrote:
sanju09 wrote:In a certain pastime, a contestant can accrue points only by scoring either an M, which counts 3 points, or an N, which counts 2 points. If a contestant scored 24 points in the pastime and x points were made by scoring M's, how many different values could x have?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8
IMO the answer shd be A

X has to an even. Only then the points from N can make it 24. (I am assuming that the contenstant has scored only 24. Not beyond that)

Am I correct??

Regards,
Chetan
Your explanation is not clearly addressing to the problem in hand. We are to answer "how many different values could x have?". Moreover, OA is [spoiler]B[/spoiler].
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
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User avatar
Senior | Next Rank: 100 Posts
Posts: 57
Joined: Fri Apr 09, 2010 11:54 am
Location: India
Thanked: 8 times
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by chetansharma » Thu Oct 06, 2011 3:18 am
sanju09 wrote:
chetansharma wrote:
sanju09 wrote:In a certain pastime, a contestant can accrue points only by scoring either an M, which counts 3 points, or an N, which counts 2 points. If a contestant scored 24 points in the pastime and x points were made by scoring M's, how many different values could x have?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8
IMO the answer shd be A

X has to an even. Only then the points from N can make it 24. (I am assuming that the contenstant has scored only 24. Not beyond that)

Am I correct??

Regards,
Chetan
Your explanation is not clearly addressing to the problem in hand. We are to answer "how many different values could x have?". Moreover, OA is [spoiler]B[/spoiler].
May be I have not explained it properly. The question seeks answer on different values X could have?
When I said that X has to be even, I meant that X can take values 6,12,18,24. If X is among 6,12 or 18 then the points from N (which are multiples of 2) can make it complete to 2). May be X can also take the value 0, which makes the total different values of X to be 5. Earlier I have not considered 0 to be one of the values that X could take.
Hope this explanation is a bit clear now :)

Regards,
Chetan
If my post helped you - let me know by pushing the thanks button :wink:
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