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Near 10

Stage: 4 Short Challenge Level: Challenge Level:1

We requre that $9< \sqrt {n}< 11$, or, equivalently, that $81< n< 121$. 
Hence the possible integer values for n are the $39$ values $n = 82, 83,$ ... $, 119, 120$.

This problem is taken from the UKMT Mathematical Challenges.