An unbiased die is rolled. Find the probability of getting a multiple of 3?

An unbiased die is rolled. Find the probability of getting a multiple of 3?

A 1/6

B 1/3

C 5/6

D None of these

Solution

Correct Answer: Option B

S = { 1, 2, 3, 4, 5, 6 }

=> n(S) = 6

E = { 3, 6}

=> n(E) = 2

Therefore, P(E) = 2/6 =1/3