Tag: Official Guide for GMAT Review 2017

GMAT OFFICIAL GUIDE PS Solution: Let’s first label the original two-digit integer as N. We can then say that N = 10A + B, where A is the tens …

GMAT OFFICIAL GUIDE PS Solution: We start by defining the equation of line l using the slope-intercept form of a line (y = mx + b), where m = …

GMAT OFFICIAL GUIDE PS Solution: Let’s start by substituting 1/x for x. This gives us: Even though our answer does not match any of the answer choices, it is …

GMAT OFFICIAL GUIDE PS Solution: We start with the formula for calculating the average. average = sum/quantity We are given that the initial quantity is n days and that …

GMAT OFFICIAL GUIDE PS Solution: We can classify this problem as a “catch up and pass” rate question. This means that one car is catching up to the other …

GMAT OFFICIAL GUIDE PS Solution: This problem does contain a diagram that looks like the following: We are given that the line y = x is a perpendicular bisector …

GMAT OFFICIAL GUIDE PS Solution: When first looking at this problem, we must consider the fact that 0.99999999/1.0001 and 0.99999991/1.0003 are both pretty nasty-looking fractions. However, this is a …

GMAT OFFICIAL GUIDE PS Solution: This problem is testing our knowledge of the multiplication rules for positive and negative numbers. Remember that when we multiply an even number of …