Question 88
If
$$
\left\{\begin{array}{l}
w x y=10 \\
w y z=5 \\
w x z=45 \\
x y z=12
\end{array}\right.
$$
what is $w + y$?
$$
\left\{\begin{array}{l}
w x y=10 \\
w y z=5 \\
w x z=45 \\
x y z=12
\end{array}\right.
$$
what is $w + y$?
MathNet 2008-part-03 — 165 problems (EN–VI) Question 88
Math Olympiad Vault · MathNet 2008-part-03 — 165 problems (EN–VI)