Did you know that you can attend the first session of any of our online or in-person GMAT courses absolutely free? We’re not kidding! Check out our upcoming courses here.

Most overlapping sets on the GMAT have two distinct groups. Students take French and/or Spanish (or neither), pianists play either classical and/or jazz (or neither), people like either QDoba and/or Baja Fresh (definitely neither. Chipotle, please)—and for these situations, the familiar, double-set matrix approach works best. Read more