Subject: mathqa
Question: in a certain large company , the ratio of college graduates with a graduate degree to non - college graduates is 1 : 8 , and ratio of college graduates without a graduate degree to non - college graduates is 2 : 3 . if one picks a random college graduate at this large company , what is the probability w this college graduate has a graduate degree ?
Option: 
A: 3 / 43
B: 3 / 19
C: 1 / 13
D: 1 / 11
Answer: B