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The faces of two regular dodecahedra are labeled with the numbers 1 to 12 in order to make dice. If these dice are rolled, what is the probability that the sum of the two top numbers is greater than 15?

 May 19, 2022
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(9, 8, 7, 6, 5, 4, 3, 2, 1) >>Total = 45

 

 

 

The above numbers are: number of ways of making up the numbers: 16, 17, 18, 19, 20, 21, 22, 23, 24

 

The probability is:  45 / 12^2 ==45 / 144==5 / 16

 May 19, 2022

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