.
This formula is P = 0.3*0.4,
and the condition states that the games are unrelated (= independent),
so you can apply this "the product" formula, as I did.
The answer is 0.3*0.4 = 0.12.
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This problem is simply to check, if you know the definition of independent events.
The rule is: if the events are independent, the probability that they occur both is the product of their individual probabilities.