Three fair dice are rolled. What is the probability that the sum of the rolls is a multiple of $4$?
Multiples of 4 are:
4, 8, 12, 16. There are this many ways of getting those multiples:
3, 21, 25, 6 ways ==55 ways of getting a mutiple of 4
Therefore, the probability is: 55 / 6^3 ==55 / 216
