The probability that an American industry will locate in Shanghai, China is 0.7, the probability that it

Question:

The probability that an American industry will locate in Shanghai, China is 0.7, the probability that it will locate in Beijing, China is 0.4, and the probability that it will locate in cither Shanghai or Beijing or both is 0.8. What is the probability that the industry will locate
(a) In both cities?
(b) In neither city?