Bunuel wrote:

Let \(\frac{x}{y} + \frac{w}{z} = 2\). Then the value of \(\frac{y}{x} + \frac{z}{w}\) is

(A) 1/2

(B) 3/4

(C) 1

(D) 5

(E) It cannot be determined from the information given.

A fast approach is to identify values for w, x, y and z that satisfy the given equation, \(\frac{x}{y} + \frac{w}{z} = 2\)

One set of values is w = 1, x = 1, y = 1 and z = 1

Now plug these values into the target expression.

We get: \(\frac{y}{x} + \frac{z}{w} = \frac{1}{1} + \frac{1}{1}\)

\(= 1 + 1\)

\(= 2\)

Since 2 is not among the first four answer choices, the correct answer must be ....

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Brent Hanneson – GMATPrepNow.com