Question

A number cube is rolled two times. What is the probability that the sum of two numbers will be 9?

Answer 1

Total number of possible outcomes = 36
Total number of outcomes with sum 9 = 4
{3, 6} (4, 5) {5, 4} (6, 3}

P(Sum = 9) = 4/36 = 1/9

Answer: 1/9