GMAT Quant

Debater: The average amount of overtime per month GMAT Always consider outliers when you’re faced with an average. In this case, note that the Manufacturing Division DOES REPRESENT the company as a whole–we’re told that early in the question. Debater: The average amount of overtime per month worked by an employee in the manufacturing division … Read More

This looks like something where we ought to be able to square the second equation as it stands–but that will give you a polynomial with a root in the middle. Bad. However, if you look at the left equation as a difference of squares (where the right equation is one of the two brackets), then … Read More