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Question

Two dice are thrown simultaneously What is the probability of getting two numbers whose product is even?

A
12
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B
34
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C
38
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D
516
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Solution

The correct option is B 34
In a simultaneous throw of two dice we have n(S)=(6×6)=36

Let E = event of getting two numbers whose product is even

Then E={(1,2),(1,4),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,2),(3,4),(3,6),(4,1),(4,2),(4,3),
(4,4)(4,5),(4,6),(5,2),(5,4),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}

n(E)=27

P(E)=n(E)n(S)=2736=34

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