Author: Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE PS Solution: To solve, we must convert 2 miles to kilometers. We are given that 1 kilometer = 0.6 mile. Thus, we can convert 2 miles …

GMAT OFFICIAL GUIDE PS Solution: We are given that a glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. Since we are dealing with a …

GMAT OFFICIAL GUIDE PS Solution: Let’s first determine the average of 10, 30, and 50, using the average formula. average = sum/quantity average = (10+30+50)/3 average = 90/3 average …

GMAT OFFICIAL GUIDE PS Solution: To solve this problem we will need to use the formula: rate x gallons = distance, which means: gallons = distance/rate We need to …

GMAT OFFICIAL GUIDE PS Solution: We are given x = 1 – 3t and y = 2t – 1, and we need to determine the value for t when …

GMAT OFFICIAL GUIDE PS Solution: This is an interesting problem because, although we usually prefer an algebraic approach to solving GMAT questions, the quickest way to solve this problem …

GMAT OFFICIAL GUIDE PS Solution: We start by subtracting 1 from 0.75 in the denominator of 1/(0.75 – 1). This yields: 1/-0.25 Next we convert 0.25 to a fraction, …

GMAT OFFICIAL GUIDE PS Solution: Let’s label each pair of socks with letters. AA = pair 1 BB = pair 2 CC = pair 3 DD = pair 4 …