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fiveflowers
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problem solving

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Problem Solving
Posted:
Tue Aug 06, 2013 2:01 am
A set of numbers has the property that for any number t in the set, t + 2 is in the set. If -1 is in the set, which of the following must also be in the set?
I.-3

II.1

III.5
A I only
B II on ...
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