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Joshua rolls two dice to form a two-digitinteger. If the number on the first die represents the tens digit and the number on the second die represents the units digit, what is the probability that the integer formed is divisible by 8?

 Aug 22, 2020
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Joshua rolls two dice to form a two-digitinteger. If the number on the first die represents the tens digit and the number on the second die represents the units digit, what is the probability that the integer formed is divisible by 8?  

 

There are a possible 36 combinations. Since 5 of those combinations satisfy the criterion, the probability is 5/36

 

1,1   1,2   1,3   1,4   1,5   1,6  

2,1   2,2   2,3   2,4   2,5   2,6  

3,1   3,2   3,3   3,4   3,5   3,6  

4,1   4,2   4,3   4,4   4,5   4,6  

5,1   5,2   5,3   5,4   5,5   5,6  

6,1   6,2   6,3   6,4   6,5   6,6

.

 Aug 22, 2020

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