GRE
The median of x, y and z
The median of $$x^{2}$$, $$y^{2}$$, and $$z^{2}$$
$$\frac{M(a^{2}+b^{2})}{12}$$
$$\frac{M(a+b)^{2}}{12}$$
The number of tables occupied by only 1 person
9
$$\frac{(a+b)^{2}-b^{2}}{a+2b}$$
$$a$$
t
s
The number of integers in S in which all three digits are different
60
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