I am a sophomore undergradaute looking ahead to grad school. My main goal is to end up in a good grad program for math. I have the following options: 1) earn a BA, masters in math simultaneously 2) double major: BA math, BA physics 3) single major: BA math Here's the problem. (1) seems like it would make me appealing to graduate schools, but it is too restricitive. It requires me to take math courses only from now on. I am also interested in physics, and I want to at the very least take a few more courses in it. So this seems to indicate that I should abandon (1). However, physics is probably not in my long term future, so maybe I should give up on physics and stick with (1). There is also a trade-off between (2) and (3) in the sense that not pursuing the major in physics will allow me to take some physics classes that interest me, while allowing me to take some extra math classes. My question is, how do these options weigh out, given that I wish to go to graduate school for math?