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 …
A bar over a sequence of digits in a decimal indicates…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: Remember that the notation means there is a bar over the 12, indicating that the decimal is nonterminating. Now, let’s start the problem by …
The diagram above shows the various paths along which a…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: A good way to solve this problem is to use the idea of the fundamental counting principle. In a more standard form you could …
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 …
A certain country had a total annual expenditure of $1.2 x 1…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: The key to solving this problem is to accurately translate what is being asked to a mathematical expression. We need to determine the “per …
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 …
A factory has 500 workers, 15 percent of whom are women. If…
May 11, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this problem we first need to determine the number of women. We know that there are 500 people and 15% of them …
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 …