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Two dice are thrown simultaneously. What is the probability that the product of the two numbers is even?

Difficulty: Easy

Correct Answer: 3/4

Explanation:


Given data

  • Each die shows 1–6 with equal probability.

Concept/Approach
The product is even unless both outcomes are odd. Compute P(both odd) and subtract from 1.


Step-by-step calculation
P(odd on one die) = 3/6 = 1/2P(both odd) = (1/2) × (1/2) = 1/4P(product even) = 1 − 1/4 = 3/4


Verification/Alternative
Complementary counting among 36 outcomes: 9 odd-odd pairs (3×3) ⇒ 36 − 9 = 27 even-product outcomes ⇒ 27/36 = 3/4.


Common pitfalls
Counting only pairs with at least one even face but forgetting total outcomes are ordered.


Final Answer
3/4

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