Author: Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE DS Solution: We are given a parallelogram with three given angles. Let’s sketch the diagram below. Since we have a parallelogram we know that opposite angles …

GMAT OFFICIAL GUIDE DS Solution: We are given that a conveyer belt moves at a constant speed of 120 centimeters per second. We must determine whether the distance the …

GMAT OFFICIAL GUIDE DS Solution: We are given the following information in regard to products P and Q. Cost per unit of P = 8 dollars Revenue per unit …

GMAT OFFICIAL GUIDE DS Solution: We must determine whether (0.1)^n > (10)^n.  We can rephrase the question as: Is (1/10)^n > (10)^n ? This can be true only if …

If x and y are positive integers, what is the value of… Solution: We must determine the value of √x + √y. Statement One Alone:  x + y = …

GMAT OFFICIAL GUIDE DS Solution: We are given that a and b are positive integers and we must determine: Is a/b < 9/11? or Is a/b <0.818181…? Statement One …

GMAT OFFICIAL GUIDE DS Solution: We are given that for a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a …

GMAT OFFICIAL GUIDE DS Solution: We must determine whether x = 1/y. Statement One Alone:  xy = 1 Manipulating the equation in statement one by dividing both sides by …