Consider the following two questions:
Question #1: If 10 is the greatest common divisor of positive integers x and y, and 20 is the lowest common multiple of x and y, what is the value of xy?
A) 15
B) 20
C) 30
D) 100
E) 200
Question #2:...

by Patti Conner
While it's one thing to be well-prepared for the analytical writingsection of the GMAT, it's another to feel completely confident about how you approach telling your own story in your MBA application.
There are plenty of...

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To set up this article, please try solving the following question:
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If toaster...

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Hank bought a bike from a wholesaler and then assigned it a retail price that is 40% greater than the...

Can you quickly calculate 15% of 42 in your head? In this lesson, we’ll examine a fast way to perform this calculation and others.
The technique I’ll demonstrate is based on the fact that it's incredibly easy to find 10% of any value,...

The following is a metaphor for how students often respond to a particularly tough GMAT question:
It’s a dark, moonless night, and you find yourself alone in a haunted house. Blood drips from the ceiling, and the words “Get out!” echo...

In my last article, we examined the importance of considering mathematical strategies other than those we learned in school. So, rather than approach a question as though our former teachers will be checking (and grading!!) every detail of...