After 274 young women spent two-and-a-half hours working through 20 advanced math problems for the 16th annual Advantage Testing Foundation/Jane Street Math Prize for Girls (MP4G) contest held Oct. 4-6 at MIT, a six-way tie was announced. Hosted by the MIT Department of Mathematics and sponsored by the Advantage Testing Foundation and global trading firm Jane Street, MP4G is the largest math prize for girls in the world. The competitors, who came from across the United States and Canada, had scored high enough on the American Mathematics Competition exam to apply for and be accepted…