Author: Scott Woodbury-Stewart
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 …
GMAT OFFICIAL GUIDE PS Solution: To solve this question, we start by FOILing the right hand side of the given equation. 10y^2 = (x+2)(x-2) 10y^2 = x^2 – 4 …
GMAT OFFICIAL GUIDE PS Solution: We must first simplify the expression in the square root **before **actually taking the square root. In other words, we have to get the …
GMAT OFFICIAL GUIDE PS Solution: The easiest way to solve this problem is to actually count the dots on the graph that fit the given criteria. We must find …
GMAT OFFICIAL GUIDE PS Solution: To solve this problem, we start by setting up two variables for the lengths of the long and short pieces of rope. L = …
GMAT OFFICIAL GUIDE PS Solution: We can classify this problem as a “combined worker” problem. To solve this type of problem we should use the formula: Work (done by …
