James can complete a job in 6 hours and Sarah can complete the same job in 4 1212 hours. If James works on the job alone

James can complete a job in 6 hours and Sarah can complete the same job in 4 1212 hours. If James works on the job alone for a certain amount of time and Sarah works on the job alone for half as long as James, and it takes 1 hour for them to complete the remainder of the job together, how long did James work on the job alone?

A. 1 hour, 6 minutes
B. 1 hour, 10 minutes
C. 2 hours, 12 minutes
D. 2 hours, 20 minutes
E. 3 hours, 18 minutes



OA C

Source: Princeton Review