HG10 wrote:Is x = |y - z|?
1. x = y - z
2. y > z
OA: C
Question rephrased: Is x equal to the distance between y and z?
The distance between two values must be positive.
Statement 1: x = y-z.
If y-z>0, then x is equal to the distance between y and z.
If y-z<0, then x is not equal to the distance between y and z.
INSUFFICIENT.
Statement 2: y>z.
No information about x.
Statements 1 and 2 combined:
Since x=y-z and y>z -- implying that y-z>0 -- x is equal to the distance between y and z.
SUFFICIENT.
The correct answer is
C.
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