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x = y + z is valid if x=2, y=1 and z=1.BTGmoderatorDC wrote:If x, y, and z are all nonzero numbers, and x = y + z, which of the following is equal to 1?
(A) (y - z)/x
(B) (y - x)/z
(C) (z - x)/y
(D) (z - y)/x
(E) (x - z)/y
Perfect opportunity to give emphasis to the connection of the first leg (FOCUS) and the third leg (ALTERNATIVE CHOICES) of our WINNING TRIAD!BTGmoderatorDC wrote:If x, y, and z are all nonzero numbers, and x = y + z, which of the following is equal to 1?
(A) (y - z)/x
(B) (y - x)/z
(C) (z - x)/y
(D) (z - y)/x
(E) (x - z)/y
Source: Veritas Prep
NOTE: this is one of those questions that require us to check/test each answer choice. In these situations, always check the answer choices from E to A, because the correct answer is typically closer to the bottom than to the top.BTGmoderatorDC wrote:If x, y, and z are all nonzero numbers, and x = y + z, which of the following is equal to 1?
(A) (y - z)/x
(B) (y - x)/z
(C) (z - x)/y
(D) (z - y)/x
(E) (x - z)/y
Since x - z = y, if we divide both sides by y we get: (x - z)/y = 1.BTGmoderatorDC wrote:If x, y, and z are all nonzero numbers, and x = y + z, which of the following is equal to 1?
(A) (y - z)/x
(B) (y - x)/z
(C) (z - x)/y
(D) (z - y)/x
(E) (x - z)/y
