Author: Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE PS – Solution: We start with 10,000 gallons of a solution that is 5% sodium chloride by volume. This means that there are 0.05 x 10,000 …

GMAT OFFICIAL GUIDE PS Solution: We need to produce an equation from the information given in the problem stem. We are first given that x is multiplied by 2 …

GMAT OFFICIAL GUIDE PS Solution: We first want to create variables for Jack’s age today and Bill’s age today. J = Jack’s age today B = Bill’s age today …

GMAT OFFICIAL GUIDE PS Solution: In solving this problem we first must recognize that the flower bed is the right triangle with sides of y yards, x yards, and …

GMAT OFFICIAL GUIDE PS Solution: This is a units digit pattern question. The first thing to recognize is that in units digit pattern questions we only care about the …

GMAT OFFICIAL GUIDE PS Solution: We are being asked to determine the length of RS. To determine this length we need to know the length from point R to …

GMAT OFFICIAL GUIDE PS Solution: Although this problem may seem confusing based on the description of the shape, we must keep in mind that the diagram provided is simply …

GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on the rule that when we express a perfect square by its unique prime factors, every prime factor’s exponent …