<s>[INST] Facility M has 3 commonly used servers A, B & C with 1 processor each. Thousands of requests are being sent to the servers to try to overwhelm them. Of the three processors, 1 will always be busy performing a system task. The 2 other processors split the user requests 50-50 among them. Note: 
- The system task can be performed by any of the 3 processors.
- Choose 1 of the servers, assign the system task to it, and then randomly run the user requests against it.
- The user population is very large, so each server has an infinite supply of requests.
The following probabilities are given: 
(Server) P(fail)  
A        0.2 
B        0.25
C        0.15
 In the long run, what is the expected number of failed requests, assuming each failed request is immediately retried on a different processor?[/INST]