Author: Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE DS – Solution: We need to determine (x + z)/2. Statement One Alone: x – y = y – z Simplifying the equation, we have: x …

GMAT OFFICIAL GUIDE DS Solution: We are given that there are 200 students and 8 cultural performances. We need to determine the average number of students attending each cultural …

GMAT OFFICIAL GUIDE DS Solution: We are given that we have red or green spheres or cubes in a box. We need to determine the total number of objects. …

GMAT OFFICIAL GUIDE DS Solution: We are given that a certain plumber charges $92 for each job completed in 4 hours or less and $23 per hour for each …

GMAT OFFICIAL GUIDE DS Solution: We have a group of 50 people and need to determine how many of those people are doctors with a law degree. We can …

GMAT OFFICIAL GUIDE DS Solution: We are given that a is a 3-digit integer and b is a 3-digit integer and need to determine whether the product of a …

GMAT OFFICIAL GUIDE PS Solution: We can create the following equation: Total houses = number with air conditioning + number with sunporch + number with pool – number with …

Solution: We are looking for two consecutive times (when the door opened) with a gap of more than 15 minutes, since only then the light would be off. Since …