Is It Possible to Have Two Events for Which $$P ( A ) = 0.40 , P ( B ) = 0.50 , \text { and } P ( A \cup B ) = 0.20 ?$$

Is it possible to have two events for which $$P ( A ) = 0.40 , P ( B ) = 0.50 , \text { and } P ( A \cup B ) = 0.20 ?$$ Explain.