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# Are x, y, z odd integers? 1) x+y+z is odd 2) x*y*z is a

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Manager
Joined: 04 Dec 2005
Posts: 79
Followers: 1

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

Are x, y, z odd integers? 1) x+y+z is odd 2) x*y*z is a [#permalink]  18 Jan 2007, 07:39
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Are x, y, z odd integers?
1) x+y+z is odd
2) x*y*z is a multiple of 4
Senior Manager
Joined: 19 Jul 2006
Posts: 361
Followers: 1

Kudos [?]: 3 [0], given: 0

1) x+y+z is odd

say x+y+z = 9 (odd)

1+3+5 = 9
2+3+4 = 9

insufficient

2) x*y*z is a multiple of 4

x*y*z = 4k => atleast one number is even

sufficient

Ans=B
SVP
Joined: 01 May 2006
Posts: 1805
Followers: 8

Kudos [?]: 98 [0], given: 0

(B) as well... Same approach as AK's one
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