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If n and y are positive integers and 450y=y^3 then which of

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If n and y are positive integers and 450y=y^3 then which of [#permalink] New post 01 Oct 2006, 08:35
If n and y are positive integers and 450y=y^3 then which of the following must be an integer?

I. y / (3 * (2^2) * 5)
II. y / ((3^2)* 2 * 5)
III. y / (3 * 2 * (5^2))

None
I only
II only
III only
I,II and III
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Re: number prop [#permalink] New post 01 Oct 2006, 18:32
Is there a typo? I don't see n.
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 [#permalink] New post 01 Oct 2006, 19:23
if it is 450n = y^3, then I choose A. none.
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 [#permalink] New post 02 Oct 2006, 04:16
You guys are right, there is a typo in there. Should be 450n = y ^ 3.
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 [#permalink] New post 02 Oct 2006, 05:32
None seems to be right.
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 [#permalink] New post 02 Oct 2006, 08:07
Ya..answer seems to be option A-None.
  [#permalink] 02 Oct 2006, 08:07
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If n and y are positive integers and 450y=y^3 then which of

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