GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on symmetric distributions. In any symmetric distribution with mean m and standard deviation d, 50% of the data values …
GMAT OFFICIAL GUIDE PS Solution: In solving this problem we must remember that we are given a rate in miles per gallon. It follows that: Rate = Distance/Gallons We …
GMAT OFFICIAL GUIDE PS Solution: Although this question appears as if we may have to do a lot of calculating, we actually do not. Focus on the first sentence …
GMAT OFFICIAL GUIDE PS Solution: We can solve this problem by first creating equations for the given information. We know that the rate is x cents for the first …
Solution: We can use some actual numbers to solve this problem. We see that p/q is less than 1. It follows that we have a proper fraction, where q …
GMAT OFFICIAL GUIDE PS Solution: To solve this problem we can translate the problem with the given information into an equation. Since we don’t know Don’s hourly rate nor …
GMAT OFFICIAL GUIDE PS Solution: Let’s use a convenient value for the total number of people in town X. Since this is a percent problem, 100 is an easy …
GMAT OFFICIAL GUIDE PS Solution: An easy way to solve this problem is to translate what is provided in the question into a mathematical equation. We know that the …
