Question

Two number cubes with faces numbered 1 to 6 are rolled. What is the probability that that sum of the rolls is 8.

A. 1/12
B. 1/11
C. 1/9
D. 5/36
E. 1/6

Answer 1

D

Explanation:

Firstly, we need to know the number of total possible results. We can do this by placing the first die in horizontal band and the second die in vertical band.

The total number of results would be 36 results.

Now, to get the number of 8s

The possible sums that can give 8 is 2 and 6, 2and 5 and 3 with 4 and 4.

All are possible two times asides the 4 and 4 that could only show one time.

This means as we can have 2 and 6 we can also have 6 and 2

The total number of expected results is thus: 5/36