Tag: data sufficiency

GMAT OFFICIAL GUIDE DS Solution: We are given that x is negative, and we must determine whether x < -3. Statement One Alone:  x^2 > 9 Taking the square …

GMAT OFFICIAL GUIDE DS Solution: We are given a circle graph of Company H’s total expenses. Let’s start by sketching it below: We are given that the total expenses …

GMAT OFFICIAL GUIDE DS Solution: We are given that r and s are both roots of the equation x^2 + bx + c = 0, where b and c …

Is RST… Solution: We need to determine whether RST = 1. Statement One Alone:  RS = 1 Since we don’t know the value of T, knowing only that RS …

GMAT OFFICIAL GUIDE DS Solution: We are given that x and y are integers and must determine whether x > y. Statement One Alone:  x + y > 0 …

GMAT OFFICIAL GUIDE DS Solution: We are given that ⌈x⌉ denotes the least integer greater than or equal to x. We must determine whether ⌈x⌉ = 0. Statement One …

GMAT OFFICIAL GUIDE DS Solution: If we have an evenly spaced set consisting of an odd number of numbers, then the middle number is the average. Since here we …

GMAT OFFICIAL GUIDE DS Solution: We are given that 50 percent of the employees are college graduates and 60 percent of the employees are over 40 years old. If …