How many of the integers that satisfy the inequality…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: Before diving into this problem we want to first analyze the given inequality: (x+2)(x+3)/(x-2) ≥ 0 This means that (x+2)(x+3) divided by x-2 is …
Author: Scott Woodbury-Stewart
If [(0.0015)(10^m)]/[(0.03)(10^k)] = 5(10^7)…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: We start by simplifying the numerator and denominator of the given fraction. First, we simplify the numerator: (0.0015)(10^m) It will be helpful to convert …
In a certain game, a large container is filled with red, yellow…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: The first thing we want to do is to decipher the problem. The key word here is “product;” we are told that the product …
The circle with center C shown above is tangent to both axes…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: We begin by creating a right triangle with the x-axis, the radius of circle C to the x-axis and the line segment from center …
In the coordinate system above, which of the following…
May 7, 2015
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 = …
If x ≠ 0 and x ≠ 1, and if x is replaced by 1/x…
May 7, 2015
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 …
Car A is 20 miles behind car B, which is traveling in the same…
May 7, 2015
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 …
John and Mary were each paid x dollars in advance to do a…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: We are first given that John worked for 10 hours and that Mary worked for 2 hours less than John. So we can say: …