10. Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
A. 8 hours
B. 8 hours 15 minutes
C. 8 hours 25 minutes
D. 7 hours 30 minutes