In a certain town, there are three types of fruit stands: Apple, Banana, and Cherry. The probability that a randomly chosen fruit stand sells apples is $$P(A) = 0.4$$, bananas $$P(B) = 0.3$$, and cherries $$P(C) = 0.3$$. If a customer picks one fruit stand at random, what is the probability that the fruit stand sells either apples or bananas?

Use the formula for the probability of the union of two events: $$P(A ext{ or } B) = P(A) + P(B) - P(A ext{ and } B)$$. Assume that no fruit stand sells both apples and bananas.