A and B complete a job in 6 days. A alone can do the job in 8 days. If B works alone, how many days will it take to complete the job?	Choose the correct choice from the following answers:
A) 12
B) 16
C) 20
D) 24
E) 28
The rate of A and B is 1/6   A's rate is 1/8   B's rate is 1/6 - 1/8 = 1/24   B can complete the job in 24 days.   The answer is 24.
<result>D</result>
A and B complete a job in 6 days. A alone can do the job in 8 days. If B works alone, how many days will it take to complete the job?