Question 175
How many are the pairs of positive integers $(x, y)$ such that $$
\frac{x y}{x+y}=144 ?
$$
\frac{x y}{x+y}=144 ?
$$
MathNet 2010 — Part 01 Question 175
Math Olympiad Vault · MathNet 2010 — Part 01
Math Olympiad Vault · MathNet 2010 — Part 01