Subject: mathqa
Question: paul ' s income is 40 % less than rex ' s income , quentin ' s income is 20 % less than paul ' s income , and sam ' s income is 40 % less than paul ' s income . if rex gave 60 % of his income to paul and 40 % of his income to quentin , paul ' s new income would be what fraction of quentin ' s new income ?
Option: 
A: 11 / 19
B: 13 / 17
C: 15 / 11
D: 13 / 19
Answer: C