Author: Jeff Miller

GMAT OFFICIAL GUIDE PS Solution: This problem can best be solved using combinations. It is similar to a problem in which 30 sports teams are playing in a tournament …

In the figure above, coordinates of point V… Solution: Looking at the diagram we can count to the right on the x-axis to get the x-coordinate of V, and …

GMAT OFFICIAL GUIDE PS Solution: When setting up ratios, we can set up a ratio in fraction form. For example, if we were told the ratio of a to …

GMAT OFFICIAL GUIDE PS Solution: To solve this question we can use the weighted average equation. Weighted Average = (Sum of Weighted Terms) / (Total Number of Items) We’ll …

GMAT OFFICIAL GUIDE PS Solution: We must solve the inequality for two cases: Case 1: (y-1/2) is Positive: |y – ½| < 11/2 y – ½ < 11/2 Add …

GMAT OFFICIAL GUIDE PS Solution: We need to simplify the equation 5 – 6/x = x. We start by multiplying the entire equation by x and we obtain: 5x …

GMAT OFFICIAL GUIDE PS Solution: We need to simplify the equation 2/(1 + 2/y) = 1. We can start by multiplying both sides of the equation by 1 + …

GMAT OFFICIAL GUIDE PS Solution: We must first eliminate the fractions in the equation 1/x – 1/(x+1) = 1/(x+4). Thus, we will multiply the entire equation by the least …