TANCET 2008 Quant - Number Property Comparisons
Number Properties Question 17
If x, y, z are chosen from the three numbers, -3,
and 2, what is the largest possible value of the expression
: 36. Choice (4)
One of the numbers is negative. The expression
will be maximized when the values are positive.
Therefore, z has to be (-3) as any number, positive or negative when squared will be a positive number.
One of x or y has to be 2 and the other
As y is in the denominator of the expression, if y takes the value of
the value of
will become 2 thereby maximizing the expression.
So, x = 2, y =
and z = -3.
The largest value of the expression is
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