Public Radio International (PRI)

Clio Cresswell says couples who compromise the least tend to have the longest-lasting relationships. She also says that out of 100 possible partners, you’re mathematically likely to make the right choice if you pick the most attractive person who’s left after 37 dates.

Cresswell lectures in math at the University of South Wales in Australia and is the author of “Mathematics and Sex.” In this interview from To the Best of Our Knowledge, she explains how you can use mathematics to aid you in your love life.

“If you picked 12 people, and then choose the next best after that for you — so that could be number 13 or 105 — that will give you an over 75 percent chance of picking someone in the top 10 or 20 percent,” Cresswell said.