Please provide correct detailed solution asap to get a upvote...Use Z=4

An electrical system consists of four components as illustrated in the figure. The system works if 10 components A and B work and either of the components Cor D works. The reliability (probability of working) of each component is also shown in figure. Determine a) The probability that system works b) The probability that the component D does not work, given that the entire system works. c) The probability that the component B does not work, given that the entire system works. Assume that the four components work independently. B 10 Z C 10 A D E