Author: Scott Woodbury-Stewart

Many test-takers want to know how long they’ll need to study for the GMAT exam. This is an important yet challenging question. Students come from different walks of life …

So you want to score 700+ on the GMAT? There’s no question that such a score will help you maximize the effectiveness of your application to top business schools. …

GMAT OFFICIAL GUIDE PS Solution: We are given that a rectangular garden is twice as long as it is wide. If we let w = the width of the …

GMAT OFFICIAL GUIDE DS Solution: We want to find the ratio of the average height of students in class X to the average height of students in class Y. …

GMAT OFFICIAL GUIDE DS Solution: Since x = 2t and y = t/3, by substitution, we have x^2 – y^2 (2t)^2 – (t/3)^2 4t^2 – t^2/9 (36t^2)/9 – t^2/9 …

GMAT OFFICIAL GUIDE PS Solution: We know the relationship between profit, revenue and cost is: profit = revenue – cost or P = R – C (the relationship is actually …

GMAT OFFICIAL GUIDE PS Solution: Since each number in the 8-number sequence after the first is 1 more than the previous number and the first number is -5, the sequence …

GMAT OFFICIAL GUIDE DS Solution: We can begin by substituting p and r in for x and y, respectively, in the 3 given equations. 1) r = ap – …