A cat and a half eats a mouse and a half for an hour and a half. How many mice will be eaten by 100 cats for 100 hours?
2 Answers
10,000. Half a cat eats no mice.
alternately...
100 - because the rest of the mice will run away over the course of the hour where each cat is eating their first mouse.
I think the answer is
$6666 \frac{2}{3}$
Reasoning
In an hour and a half, $N$ cats eat $N$ mice. Therefore the number of mice eaten by $100$ cats in $100$ hours will be $100 \times \frac{100}{3/2}$