Author: Jeff Miller

GMAT OFFICIAL GUIDE DS Solution: We need to determine the amount that Jean earned from the commission on her sales in the first half of 1988. Statement One Alone:  …

GMAT OFFICIAL GUIDE DS Solution: We are given a figure, and we need to determine the value of x + y. Let’s sketch the diagram below: Statement One Alone: …

GMAT OFFICIAL GUIDE DS Solution: We are given that a theater sold 400 tickets, some at full price and others at x percent of the full price. Let’s let …

GMAT OFFICIAL GUIDE DS Solution: We are given that the average of 6 numbers in a list is 75. Using this information we see that the sum of the …

GMAT OFFICIAL GUIDE DS Solution: We need to determine whether all of the numbers in the certain list of 15 numbers are equal. Statement One Alone:  The sum of …

GMAT OFFICIAL GUIDE DS Solution: We are given that in January Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then …

GMAT OFFICIAL GUIDE DS Solution: We are given that the expenses for manufacturing product X were $100,000 plus 5% of the total revenue from all units of product X …

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: power …