Definition:Donkey and Mule Problem/Historical Note

Historical Note on Donkey and Mule Problem
The earliest known occurrence of a Donkey and Mule problem is in a piece of Greek verse attributed to.

Since then it has appeared in many places, and crops up regularly in puzzle anthologies.

The general form:
 * Let $\tuple {a, b, c, d}$ denote the general problem:
 * If I had $a$ from you I'd have $b$ times as many as you.
 * If I had $c$ from you I'd have $d$ times as much as you.
 * appears never to have been completely explored.