Author: Jeff Miller

GMAT OFFICIAL GUIDE DS Solution: We are given that material A costs $3 per kilogram and that material B costs $5 per kilogram. We also know that 10 kilograms …

GMAT OFFICIAL GUIDE DS Solution: We need to determine whether = 0 where denotes the greatest integer less than or equal to x. If the rule is hard to …

GMAT OFFICIAL GUIDE DS Solution: Let’s start by sketching the given diagram: We are given that each letter represents one of the numbers 1, 2, or 3, and that …

GMAT OFFICIAL GUIDE DS Solution: We need to determine the number of cans that can be packed in a carton. Before moving to the statements we should recognize that …

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 …