Author: Scott Woodbury-Stewart
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 …
GMAT OFFICIAL GUIDE PS Solution: This is a percent decrease problem. We will use the formula: percent change = (new – old)/old x 100 to calculate the final answer. …
GMAT OFFICIAL GUIDE PS Solution: The fractional ratio indicates that for every 3 Republicans, there are 5 Democrats, a ratio of 3 : 5. We first set up this …
