VJesus12 wrote:Is x < y?
(1) z < y
(2) z < x
Statement 1:
No information about x.
INSUFFICIENT.
Statement 2:
No information about y.
INSUFFICIENT.
Statements combined:
Case 1: z=0, y=2 and x=1
In this case, x < y so the answer to the question stem is YES.
Case 2: z=0, y=1 and x=2
In this case, x > y, so the answer to the question stem is NO.
Since the answer is YES in Case 1 but NO in Case 2, INSUFFICIENT.
The correct answer is
E.
If we subtract both statements we will get that x<y. Why is the correct answer E?<i class="em em-disappointed"></i>
We cannot subtract inequalities; we can only ADD them.
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