Author: Jeff Miller

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 …

GMAT OFFICIAL GUIDE PS Solution: When looking at the diagram, we want to start with the quadrilateral that contains angles z and y. We must remember that any quadrilateral …

GMAT OFFICIAL GUIDE PS Solution: We are given that a triangle is created using the x- and y-axes of the coordinate plane. The vertices of the triangle fall at …

GMAT OFFICIAL GUIDE PS Solution: To solve we will set up a proportion. We know that “100 million vehicles is to 96 accidents as 3 billion vehicles is to …

GMAT OFFICIAL GUIDE PS Solution: To solve, we will set up two equations. Let’s start by defining two variables. J = number of dollars Jim has L = number …

GMAT OFFICIAL GUIDE PS Solution: Since we know that m^-1 = -1/3 and m^-2 = (m^-1)^2, then m^-2 = (-1/3)^2 = 1/9. Answer: D