If 1 + 1/x = 2 – 2/x, then x =…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: We need to simplify the equation 1 + 1/x = 2 – 2/x. We start by adding 2/x to both sides of the equation. …
Author: Scott Woodbury-Stewart
The figure above shows a circular flower bed…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: The circular path (i.e., the shaded region) is called an annulus in geometry. Basically an annulus is a ring-shaped figure bounded by two concentric …
A committee is composed of w women and m men. If 3 women and…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve the problem we must remember that: probability = (number of favorable outcomes)/(total number of outcomes) In the problem we are being asked …
If (4 – x)/(2 + x) = x, what is the value of x^2 + 3x -4
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: We start by simplifying the given equation, (4-x)/(2+x) = x. We first multiply both sides by 2+x. Thus we have: 4 – x = …
If the operation @ is defined by x@y=(xy)^1/2 for all …
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that the operation ⊙ is defined by x⊙y = √(xy) for all positive numbers. We are next given that (5⊙45)⊙60. Following …
David has d books, which is 3 times as many as Jeff…
May 21, 2015
GMAT OFFICIAL GUIDE PS – Solution: Although we could plug in a real value for d, the problem can be just as easily solved by setting up equations. So …
The ratio of the length to the width of a rectangular advertising…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s first set up our ratio using variable multipliers. length : width = 3.3x : 2x We are given that the width is 8 …
According to the chart shown, which of the following is…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: An easy way to determine which data value is the median is to take the total number of shipments, add 1, and then divide …