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# If y ≠ 3 and is a prime integer greater than 2, which

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Manager
Joined: 01 Jan 2005
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If y ≠ 3 and is a prime integer greater than 2, which [#permalink]  10 Jan 2005, 03:56
If y ≠ 3 and is a prime integer greater than 2, which of the following must be true?
Ⅰ. x = y
Ⅱ. y = 1
Ⅲ. x and y are prime integers.

Could any body tell me why None of them will be true?
Director
Joined: 07 Jun 2004
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I think this Q is incomplete what is x somthign is wrong with this Q
Director
Joined: 21 Sep 2004
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what is x in this question.. no relation s hown?
Manager
Joined: 01 Jan 2005
Posts: 167
Location: NJ
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I think I missed some information while copying. Here it is...
If y ≠ 3 and x/y is a prime integer greater than 2, which of the following must be true?
Ⅰ. x = y
Ⅱ. y = 1
Ⅲ. x and y are prime integers.

Could any body tell me why None of them will be true?
Director
Joined: 19 Nov 2004
Posts: 563
Location: SF Bay Area, USA
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I) If x were equal to y, x/y =1. Since x/y is a prime integer greater than 2, this can't be true.

II) y = 1
If y=1, x/y = x, which need not be prime, if we use a non-prime value of x such as 4. So, not true

III) x and y are prime integers
x/y is not an integer. So, not true

None!
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