Author: Jeff Miller

GMAT OFFICIAL GUIDE DS Solution: We are given that in triangle ABC, point X is the midpoint of side AC, point Y is the midpoint of side BC, point …

A school administrator will assign each student in a… Solution: The first task in solving this question is to determine exactly what is being given and what is being asked. …

GMAT OFFICIAL GUIDE DS Solution: We need to determine the maximum number of liters that Marcia’s bucket can hold. Statement One Alone:  The bucket currently contains 9 liters of …

GMAT OFFICIAL GUIDE DS Solution: We need to determine whether n is an integer. Statement One Alone:  n^2 is an integer. If n^2 is an integer, n could be …

GMAT OFFICIAL GUIDE DS Solution: We are given that n is a positive integer, and we must determine the tens digit of n. Statement One Alone:  The hundreds digit …

GMAT OFFICIAL GUIDE DS Solution: We are given that production index p is directly proportional to efficiency index e, which is in turn directly proportional to investment index i. …

GMAT OFFICIAL GUIDE DS Solution: We are given that n and k are positive integers, and we must determine whether √(n + k)> 2√n. We first square both sides …

GMAT OFFICIAL GUIDE DS Solution: We need to determine the value of x + y in the given figure. Let’s start by sketching the figure. In analyzing the angles …