Tag: Official Guide for GMAT Review 2016

GMAT OFFICIAL GUIDE PS Solution: We start by subtracting 1 from 0.75 in the denominator of 1/(0.75 – 1). This yields: 1/-0.25 Next we convert 0.25 to a fraction, …

GMAT OFFICIAL GUIDE PS Solution: To solve this question, we start by FOILing the right hand side of the given equation. 10y^2 = (x+2)(x-2) 10y^2 = x^2 – 4 …

GMAT OFFICIAL GUIDE PS Solution: In solving this problem there are three angle rules that we must consider. 1) A circle measures a total of 360 degrees. 2) A …

GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on our knowledge of variables in a “work” question. Ultimately, we are solving for time. Since rate x time …

GMAT OFFICIAL GUIDE PS Solution: To solve, we use the average equation: average = sum/quantity We don’t know the individual scores for each of the first 4 tests, but …

GMAT OFFICIAL GUIDE PS Solution: To solve, we will use the number given in each Roman numeral to determine the average and median and determine whether they are equal. …

GMAT OFFICIAL GUIDE PS Solution: We are given that a case contains c cartons. Each carton contains b boxes, and each box contains 100 paper clips. Thus we can …

GMAT OFFICIAL GUIDE PS Solution: (Note that the * symbol in this solution indicates multiplication.) We are given that X(n) = 2 * X(n-1) – ½ * X(n-2), for …