paresh_patil wrote:Is x>y>z?
1) x-y = |x-z| + |z-y|
2) x>y
|a-b| = the DISTANCE between a and b.
Statement 1: x-y = |x-z| + |z-y|
In other words:
x-y = (the distance between x and z) + (the distance between z and y).
Draw a NUMBER LINE.
If x>y>z, we get:
Z <---------------> Y <-------(x-y)------> X
Here, x-y is LESS THAN the distance between x and z, violating the requirement that x-y = (the distance between x and z) + (the distance between z and y).
Thus, it is not possible that x>y>z.
SUFFICIENT.
Statement 2: x>y
No information about z.
INSUFFICIENT.
The correct answer is
A.
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