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If y is the smallest positive integer such that 3,150

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Director
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If y is the smallest positive integer such that 3,150 [#permalink] New post 23 Nov 2008, 07:21
If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then
y must be
A. 2
B. 5
C. 6
D. 7
E. 14
Director
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Re: GMAT Set 27 - 30 [#permalink] New post 23 Nov 2008, 09:33
DavidArchuleta wrote:
3150= 25 . 9. 14

David, how did you arrive to the answer? To be honest, i dont get the question . :?
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Re: GMAT Set 27 - 30 [#permalink] New post 24 Nov 2008, 09:07
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botirvoy wrote:
DavidArchuleta wrote:
3150= 25 . 9. 14

David, how did you arrive to the answer? To be honest, i dont get the question . :?

Oh my gosh, ROFL..
I really love that.
You call me David haha. I'm a girl, David Archuleta is my fav singer.
Anyway, the question ask you the smallest number that if you multiple that number with 3150, the result is is the square of an integer.
3150= 5^2. 3^2. 14=15^2 . 14
So you must multiple 14 to get:
14. y = 15^2 . 14^2=(15.14)^2
Director
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Joined: 29 Aug 2005
Posts: 881
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Kudos [?]: 153 [0], given: 7

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Re: GMAT Set 27 - 30 [#permalink] New post 30 Nov 2008, 10:30
DavidArchuleta wrote:
botirvoy wrote:
DavidArchuleta wrote:
3150= 25 . 9. 14

David, how did you arrive to the answer? To be honest, i dont get the question . :?

Oh my gosh, ROFL..
I really love that.
You call me David haha. I'm a girl, David Archuleta is my fav singer.
Anyway, the question ask you the smallest number that if you multiple that number with 3150, the result is is the square of an integer.
3150= 5^2. 3^2. 14=15^2 . 14
So you must multiple 14 to get:
14. y = 15^2 . 14^2=(15.14)^2

:lol: In this side of the ocean we (act, I) have got no clue about David Archuleta! Sings well though.
Thanks for explaining the q.
Re: GMAT Set 27 - 30   [#permalink] 30 Nov 2008, 10:30
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