a prisoner escapes from jail. There are 3 roads. If the prisoner selcts road a to an escape, the probability that she succeeds is 1/4. If she selects...

a prisoner escapes from jail. There are 3 roads. If the prisoner selcts road a to an escape, the probability that she succeeds is 1/4. If she selects road b, the probability is 1/5. If she selects road c the probability is 1-6. furthermore, the probability of selecting each of the roads are the same. It is 1/3. If the prisoner succeeds on her escape, what is the rpobability that she made good on her escape by using road b.