In the coordinate plane, a circle has center (2, -3) and…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: Because the circle passes through point (5,0) and has center (2,-3), we know that the distance between these points is the radius of the …
Two integers will be randomly selected from…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: To determine the probability that the sum of the two integers will equal 9, we must first recognize that probability = (favorable outcomes)/(total outcomes). …
If m is the average (arithmetic mean) of the first…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: When we have an evenly spaced set of numbers, the mean and the median are equal. Recall that an evenly spaced set of numbers …
At a certain school, the ratio of the number of second…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given the following: 1) The ratio of the number of second graders to the number of fourth graders is 8 to 5. …
The average distance between the Sun and a certain…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem is a unit conversion with an added twist of scientific notation. We need to convert 2.3 x 10^14 inches to KILOMETERS. We …
A certain fruit stand sold apples for $0.70 each and bananas…
May 6, 2015
A certain fruit stand sold apples for $0.70… Solution: We are given that apples were sold for $0.70 each and that bananas were sold for $0.50 each. We can …
GMAT OFFICIAL GUIDE PS – In the xy-plane, what is the slope of…
May 6, 2015
In the xy-plane, what is the slope of… Solution: The easiest way to determine the slope of the line is to put the equation of the line into slope-intercept …
On a certain day, orangeade was made by mixing a certain
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that orangeade is made on Day 1 with an EQUAL AMOUNT of water and orange juice. We can set this information …