Author: Jeff Miller

GMAT OFFICIAL GUIDE PS Solution: The first thing we want to do is set up the ratio of the original solution using variable multipliers. soap : alcohol : water …

GMAT OFFICIAL GUIDE PS Solution: This problem is testing our knowledge of the multiplication rules for positive and negative numbers. Remember that when we multiply an even number of …

GMAT OFFICIAL GUIDE PS Solution: We start by creating a variable for the total number of students in the math course. We can say: T = Total number of …

GMAT OFFICIAL GUIDE PS Solution: To solve, we first isolate the x^2 in the inequality 1 – x^2 ≥ 0. So we have: 1 ≥ x^2 Next, we take …

GMAT OFFICIAL GUIDE PS Solution: For the sixth term, we need to substitute 6 for n, and for the fifth term, we need to substitute 5 for n. Then …

GMAT OFFICIAL GUIDE PS Solution: For this we can setup a table with 2 main categories: years of experience and degrees. These can be broken down further into: 1) …

GMAT OFFICIAL GUIDE PS Solution: We are given that a dealer ordered 60 cameras to be sold for $250 each. This is a 20% markup over the initial cost …

Of the 300 subjects who participated in an experiment using… Solution: This is a 3-circle Venn Diagram problem. Because we do not know the number of unique items in …