Question

If two dice are simultaneously rolled then what is probability of getting sum 4?

(a) 1/6

(b) 1/4

(c) 1/12

(d) 1/9

I had been asked this question in an interview for job.

I want to ask this question from Probability topic in section Probability of Mathematics – Class 11

Answer 1

The correct choice is (c) 1/12

For explanation I would say: If two dice are simultaneously rolled then total number of possible outcomes is 6*6 =36.

We can get 4 as sum in these cases {(1,3), (2,2), (3,1)}. So, probability of getting sum 4 is 3/36 = 1/12.