Author: Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE DS Solution: We are given a diagram of quadrilateral RSTU. Let’s sketch it below: We are given that RU is parallel to side ST and that …

GMAT OFFICIAL GUIDE DS Solution: We are given that when a coin was tossed a certain number of times, 4 more heads than tails resulted. If we let H …

GMAT OFFICIAL GUIDE DS Solution: We need to determine whether Juan’s appointment was on Wednesday. Statement One Alone:  Exactly 60 hours before the appointment, it was Monday. Although we …

GMAT OFFICIAL GUIDE DS Solution: An easy way to solve this problem is to set up a double set matrix. In our matrix we have two main categories: study …

GMAT OFFICIAL GUIDE DS – Solution: We are given that x, y, and z are three-digit positive integers. We are also given that x = y + z. We …

GMAT OFFICIAL GUIDE DS Solution: We need to determine the volume of a rectangular solid. If L = length, W = width and H = height, the formula for …

GMAT OFFICIAL GUIDE DS Solution: We are given that the rent collected in a building was x percent more in 1998 than it was in 1997 and y percent …

GMAT OFFICIAL GUIDE DS Solution: We are given that a box contains red, white, and blue chips. We need to determine the probability that, if one chip is randomly …