jmc

An integer equivalent to 5 mod 30 can be written in the form $30k+5$. In this situation, $30k+5$ represents the number of stamps your friend has, while $k$ represents the number of filled pages he has. We want to solve the inequality $30k+5>200$. This inequality has solution $k>6\frac{1}{2}$. Since $k$ represents the number of filled pages, $k$ must be an integer. The smallest integer greater than $6\frac{1}{2}$ is $7$, so your friend has $30(7)+5=\boxed{215}$ stamps.