At a loading dock, each worker on the night crew…
May 11, 2015
At a loading dock, each worker on the night crew… Solution: The easiest way to solve this question is to choose convenient values for the number of day workers …
Author: Scott Woodbury-Stewart
A certain rectangular window is twice as long…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: We set up the dimensions of the rectangular window as w = width and l = length. We are given that the rectangular window …
In a small snack shop, the average (arithmetic mean) revenue…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: This is a problem testing us on our knowledge of weighted averages. To solve, we can set up a weighted average equation: (Revenue for …
Mary’s income is 60 percent more than Tim’s income…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this problem we create variables for the income of Mary, Tim, and Juan, and then set up some equations. T = Tim’s …
Xavier, Yvonne, and Zelda each try independently to solve a problem…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: We are first given the individual probabilities that Xavier, Yvonne, and Zelda WILL solve the problem. We list these below: P(Xavier will solve) = …
If x + 5 > 2 and x – 3 < 7, the value of x must be…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s isolate x in each inequality. x + 5 > 2 x > -3 Next we simplify x – 3 < 7. x – …
If 1 kilometer is approximately 0.6 mile, which of the following…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve, we must convert 2 miles to kilometers. We are given that 1 kilometer = 0.6 mile. Thus, we can convert 2 miles …
A glucose solution contains 15 grams of glucose per 100 cubic…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that a glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. Since we are dealing with a …