How many trips will Sandy have to make to bring 33 goldfish home if he can take only 6 at a time?

Sandy will have to make six trips to bring all 33 fish home. Why? Well, if you can only take six home, you start by taking six fish. Another trip brings the number of fish at home up to 12. A third brings it up to 18. The fourth trip will bring it up to 24. By the end of trip number five, you have 30 goldfish at home. So, trip six will only have three more fish to bring home, and then Sandy is done.

Why it’s only six fish is hard to say. This is one of the awkward parts of mathematical word problems: they often don’t give a final answer for what the purposes behind the restrictions are.