Author: Jeff Miller

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

A restaurant meal cost $35.50 and there was no tax… Solution: To solve, we can set up two equations, one for a tip of 10% and another for a …

GMAT OFFICIAL GUIDE PS Solution: We are given that operation Ө is defined by aӨb = (a-b)/(a+b). We are also given that aӨc = 0; thus, according to the …

GMAT OFFICIAL GUIDE PS Solution: We start by calculating the median of the numbers of list I: 3, 6, 8, 19. We see that the numbers in the list …