GMAT Videos

VIDEO: The function f is defined for each positive 3-digit integer n by GMAT

[latexpage] The function f is defined for each positive three-digit integer n by $f(n) = 2^x 3^y 5^z$, where x,…

4 weeks ago

VIDEO: Last year all refuse collected by Shelbyville city services was incinerated GMAT

Look at what you're trying to do: reduce the amount of ash by reducing the number of truckloads. Fewer truckloads…

1 month ago

VIDEO: (2 3/5− 1 2/3)/(2/3 – 3/5) GMAT

This is rated hard. Why? Mostly it's picking what to do quickly. First eliminate the mixed numbers, then cancel the…

1 month ago

VIDEO: Asthma, a chronic breathing disorder, is significantly more common today GMAT

The question you want to ask yourself--no matter how weird it sounds on the surface--is this: does swimming cause asthma,…

1 month ago