Two fair tetrahedral( 4 faces each ) dice are thrown. on one die, the faces are numbered 1,2,3,4. on the other die, the faces are numbered 1,2,4, and 8. what is the probability that the sum of the face down numbers will be divisible by 3

Explanation:

Find out all of the combos of sums (2,3,5,9,3,4,6,10,4,5,7,11,5,6,8,12)

Then find out how many of these are divisible by 3 (6)

Count how many possibilities there are (24)

6/24=25%

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