During the UPCAT exam, there were 350 examinees from Luzon, 250 from Visayas and 400 from Mindanao. The results of the exams revealed that flunkers from Luzon, Visayas and Mindanao are 3%, 5% and 7% . If a name of a flunker is picked at random, what is the probability that it came from Mindanao

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