Sampling theory — comparing sampling with and without replacement

Consider a finite population of size $N=100$. Let $T_1$ be the sample mean of a study variable based on a sample of size $n$ $(1<n<N)$ under simple random sampling with replacement scheme. Let $T_2$ be the sample mean of the same study variable based on a sample of size $n$ under simple random sampling without replacement scheme. If $\operatorname{Var}(T_1)=9\operatorname{Var}(T_2)$, then the sample size $n$ equals