Saturday, August 22, 2015

Mouse eating cat

All of the 13 mice in the figure are doomed to be eaten by the cat. But the cat wants to eat them in a certain order. The cat eats one mouse and then counts around the circle in the direction in which the mice are looking. When it gets to 13 it eats the next mouse and starts counting again. Which mouse must the cat eat first so that the white mouse is eaten last?



Source: Fun with Maths and Physics by Perlman 

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