Author: Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE PS Solution: This is a units digit pattern question. The first thing to recognize is that in units digit pattern questions we only care about the …

GMAT OFFICIAL GUIDE PS Solution: We are being asked to determine the length of RS. To determine this length we need to know the length from point R to …

GMAT OFFICIAL GUIDE PS Solution: Although this problem may seem confusing based on the description of the shape, we must keep in mind that the diagram provided is simply …

GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on the rule that when we express a perfect square by its unique prime factors, every prime factor’s exponent …

GMAT OFFICIAL GUIDE PS Solution: This problem is a general word translation. We first define variables and then set up equations. We can define the following variables: F = …

GMAT OFFICIAL GUIDE PS Solution: To solve this problem we can view it as a type of “shaded region” problem, in which we first determine the area of the …

GMAT OFFICIAL GUIDE PS Solution: We can solve this problem in a similar manner to solving a work problem, and we can use a table to organize our information. …

GMAT OFFICIAL GUIDE PS Solution: We would never be asked to calculate 3^8 or 2^8, so we must approach this problem not as an arithmetic question but as an …