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

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Current Student
Joined: 12 May 2006
Posts: 139

Kudos [?]: 2 [0], given: 0

If n and y are positive integers and 450y=y^3 then which of [#permalink]

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01 Oct 2006, 09:35
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

Kudos [?]: 2 [0], given: 0

Manager
Joined: 01 Oct 2006
Posts: 240

Kudos [?]: 14 [0], given: 0

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01 Oct 2006, 19:32
Is there a typo? I don't see n.

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VP
Joined: 25 Jun 2006
Posts: 1161

Kudos [?]: 192 [0], given: 0

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01 Oct 2006, 20:23
if it is 450n = y^3, then I choose A. none.

Kudos [?]: 192 [0], given: 0

Current Student
Joined: 12 May 2006
Posts: 139

Kudos [?]: 2 [0], given: 0

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02 Oct 2006, 05:16
You guys are right, there is a typo in there. Should be 450n = y ^ 3.

Kudos [?]: 2 [0], given: 0

VP
Joined: 21 Aug 2006
Posts: 1012

Kudos [?]: 39 [0], given: 0

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02 Oct 2006, 06:32
None seems to be right.
_________________

The path is long, but self-surrender makes it short;
the way is difficult, but perfect trust makes it easy.

Kudos [?]: 39 [0], given: 0

Manager
Joined: 31 Aug 2006
Posts: 210

Kudos [?]: 2 [0], given: 0

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02 Oct 2006, 09:07
Ya..answer seems to be option A-None.

Kudos [?]: 2 [0], given: 0

02 Oct 2006, 09:07
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