GMAT Videos

Andrew started saving at the beginning of the year… …and had saved $240 by the end of the year. He continued to save and by the end of 2 years had saved a total of $540. Which of the following is closest to the percent increase in the amount Andrew saved during the second year … Read More

If 3/(10^4) = x%, then x = (A) 0.3(B) 0.03(C) 0.003(D) 0.0003(E) 0.00003 Never write the percent sign or use it in calculation. Always make x% = x/100 immediately. GMAT #GRE #Quant #MIM #MBA I need to write a few more things to make this human-friendly according to my SEO software, so let me tell … Read More

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