How many people are there where you rk?

你工作的地方有多少人？

How many people rk in the man's office?

在这个人的办公室里一共有多少人在工作？

How many people rk in his office?

他办公室里有多少人?

Now, this doesn't mean that he rks with 49 strange people! – odd is being used here to mean about.

这不是说除了他，还有49个奇怪的人在此。odd在这里是about的意思。