Question

PLEASE ANSWER!!!
Two dice are thrown. Find the probability of the following events:
Event A : The product of the numbers on their upper faces is 10.
Event B : The sum of the numbers on their upper faces is multiple of 9.
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Answer 1

Let A &B be the favorable event then

A= {(2,5),(5,2)}

n(A)=2

since n(S)=36

so,p(A)=n(A)/n(S)

=2/36

=1/18.

Similarly,

B= {(3,6),(4,5),(5,4),(6,3)}

n(B)=4

We know n(S)=36.

so,p(B)=n(B)/n(S)

=4/36

=1/9.

Hope it will help you