Asked by Help please

Let S={1,2,3,…11} and T1,T2…,TN be distinct subsets of S such that |Ti∩Tj|≤2 for all values i≠j.

What is the maximum possible value of N?

(The empty set is a subset of every set.)
Answered by Anonymous
232 is right
Answered by pyhsiclover
Thank you :)
but if u don't mind,can u explain it?
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