Problem Solving (PS) | Re: Consider the sets Tn = {n, n + 1, n + 2, n + 3, n + 4}, where n = 1

1,2,3,4,5
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2,3,4,5,6
3,4,5,6,7
4,-----,8
5,-----,9
6,-----,10
______________
7,-----,11
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8,-----,12
9,-----,13
10,-----,14
11,-----,15
12,-----,16
_____________
13,-----,17
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so we see every 1st set in the group of 6 doesn't fit into the criteria. So, 96 - 16 = 80 will be the answer.

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