The probability that an egg will break when kept in the store is 5 out of every 200. How many broken eggs do you expect from a crate containing 600 eggs?

Expected number of broken eggs = $P(\text{broken egg}) \times \text{Total number of eggs}$
Expected number of broken eggs = $\frac{1}{40} \times 600$

Expected number of broken eggs = $\frac{600}{40} = \frac{60}{4} = 15$

You can expect $\boxed{15}$ broken eggs from a crate containing 600 eggs.