In article ,
Franz Heymann wrote:
Have you read Charles Dodgson (a.k.a. Lewis Carroll) on the question
of how many cats it takes to kill rats in a given time?
No, but I look forward to hearing where he wrote that.
"The Monthly Packet", February 1880. It is on pages 140-142 of
The Magic of Lewis Carrol by John Fisher (Penguin), but my copy
was published in 1975.
If all the animals are reasonably spaced, I guess the number killed
per unit time is proportional to the product of the number of cats and
You've got to the first step.