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If x, y and z are 3 integers, are they consecutive ? 1)

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If x, y and z are 3 integers, are they consecutive ? 1) [#permalink] New post 12 May 2003, 12:45
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If x, y and z are 3 integers, are they consecutive ?

1) z-x=2
2) x<y<z
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 [#permalink] New post 14 Mar 2006, 19:06
1) Only tells us z and x are two apart. No information about y. Insufficient.
2) Only tells us the integers can be arragned in increasing order (x,y,z). No information they are consecutive. Insufficient.

Using 1) and 2),
we can tell x is 2 places below z. since x, y and z are integers and y is between x and z, the order must be x,y,z each 1 place apart. Sufficient.

Ans C
  [#permalink] 14 Mar 2006, 19:06
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If x, y and z are 3 integers, are they consecutive ? 1)

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