Prove that among any 3 integers there are always two whose difference is divisible by 2.
Stuck: Counting Problem..Prove that among any 3 integers...
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discrete-mathematics
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4Can you show some effort, i.e. what ides have you tried so far? – 2012-11-13
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0Related: http://math.stackexchange.com/questions/236235/discrete-math-counting/236236#236236 – 2012-11-13
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0Not if 2 or more of them can be the same! – 2013-04-05