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are v and w integers? 1) (v+w)^1/2 is an integer 2) v/w is

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VP
VP
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Joined: 25 Nov 2004
Posts: 1482

Kudos [?]: 122 [0], given: 0

are v and w integers? 1) (v+w)^1/2 is an integer 2) v/w is [#permalink]

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New post 26 Feb 2005, 23:43
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A
B
C
D
E

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are v and w integers?
1) (v+w)^1/2 is an integer
2) v/w is an integer

Kudos [?]: 122 [0], given: 0

Senior Manager
Senior Manager
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Joined: 19 Feb 2005
Posts: 486

Kudos [?]: 25 [0], given: 0

Location: Milan Italy
 [#permalink]

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New post 27 Feb 2005, 02:30
picking numbers
(6+3)^1/2=integer
6/3=integer as well

BUT
(9/2+9/2)^1/2=integer
9/2*2/9=1=integer as well

So E

Kudos [?]: 25 [0], given: 0

Director
Director
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Joined: 07 Jun 2004
Posts: 611

Kudos [?]: 885 [0], given: 22

Location: PA
 [#permalink]

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New post 27 Feb 2005, 05:14
taking some sample examples we can disporve both statmemnets

E

Kudos [?]: 885 [0], given: 22

VP
VP
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Joined: 18 Nov 2004
Posts: 1431

Kudos [?]: 43 [0], given: 0

 [#permalink]

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New post 27 Feb 2005, 20:25
"E"

state 1....v+w = n^2.....no way to tell if both r integers or not

state 2....v = mw.....again insuff


combine

w = n^2/m+1.....not suff

Kudos [?]: 43 [0], given: 0

Current Student
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Joined: 28 Dec 2004
Posts: 3354

Kudos [?]: 316 [0], given: 2

Location: New York City
Schools: Wharton'11 HBS'12
 [#permalink]

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New post 28 Feb 2005, 10:39
E it is ...

pick numbers like 1/2 and 2

both are possible solutions....E it is..

Kudos [?]: 316 [0], given: 2

  [#permalink] 28 Feb 2005, 10:39
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are v and w integers? 1) (v+w)^1/2 is an integer 2) v/w is

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