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Probability - General Aptitude

Q1:

What is the probability of getting a sum 9 from two throws of a dice?

A
1
6

B
1
8

C
1
9

D
1
12

ANS:C -

1
9

In two throws of a dice, n(S) = (6 x 6) = 36. Let E = event of getting a sum ={(3, 6), (4, 5), (5, 4), (6, 3)}.

P(E) = n(E) = 4 = 1 .
n(S) 36 9