Arithmetic Ability
 Probability

122 / 132

Q.

Two dice are thrown together .What is the probability that the sum of the number on the two faces is divided by 4 or 6.

View Answer

Correct choice: A

Explanation:

Clearly, n(S) = 6 x 6 = 36 Let E be the event that the sum of the numbers on the two faces is divided by 4 or 6. Then,E = {(1,3),(1,5),(2,2),(2,4),(2,6),(3,1),(3,3),(3,5),(4,2),(4,4),(5,1),(5,3),(6,2),(6,6)} n(E) = 14. Hence, P(E) = n(E)/n(S) = 14/36 = 7/18
122 / 132