You're buying a circular rug for a square room, and you want to calculate how much floor space will be left bare once the rug is in place. Do you know how? This is a question much like one you might see on the Graduate Management Admissions Test, for years the gatekeeper to an MBA education in the U.S.
If you're in midcareer and want to get into an MBA program tailored for busy executives, and you can't summon the college math, don't fret. Try this one: How many executive MBA programs in BusinessWeek's top 25 require the GMAT? The answer: 12. That's right, you can get into EMBA programs at 13 top-ranked B-schools without taking the GMAT.