This may or may not be true. (S)he might have had a biggotted professor. Moreover, this happened in the 1970's and much has changed since then. I would be shocked, very shocked if something like this would happen now.
I'd love to know what he/she/it considered to be a complicated math problem.
So freakin' what? What does it prove?
Did she constantly outshine all the other brainiacs? Or was she an average genius in a school known for attracting geniuses?
Or maybe the prof was just trying to be nice. :-)
I was at MIT as an undergrad at around the same time that this guy/girl/whatever must have been there. I can attest from personal experience that there were plenty of professors there who would willingly bust your balls (um, guess that may not have been the most appropriate expression to use, huh) no matter what the pretext was. At the same time, there was constant whining about how difficult it was to be a black person at MIT. People tend to look for ways to blame their own personal problems on others. Guess what - it was difficult to be any kind of person at MIT. I came to that realization because I didn't have a convenient scapegoat to blame for my own difficulties...