Author: Jeff Miller

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 …

GMAT OFFICIAL GUIDE DS Solution: We are given that ° represents one of the following operations: addition, subtraction, or multiplication, and we must determine whether k ° (l + …

GMAT OFFICIAL GUIDE DS Solution: We are given that 100 voters were surveyed about their impressions of candidate M and of candidate N, and they responded in the following …

GMAT OFFICIAL GUIDE DS Solution: We are given that Joanna bought only $0.15 stamps and $0.29 stamps. We must determine how many $0.15 stamps Joanna bought. Statement One Alone:  …