Question

Two dice are thrown simultaneously. Then the probability of getting two numbers whose product is even is 

(A) 3/4

(B) 1/4

(C) 5/7

(D) 1/2

Answer 1

Correct option is:(A) 3/4

Two dice are thrown. 

∴ n(S) = 36 

Getting two numbers whose product is even, 

i.e., one of the two numbers must be even. 

Let event A: Getting even number on first dice,

event B: Getting even number on second dice.

n(A) = 18, n(B) = 18, n(A ∩ B) = 9 

Required probability = P(A ∩ B)