A and B have to type a book together containing 120 pages. A takes 9 hrs to type 36 pages and B takes 5 hrs to type 40 pages. A typed first 60 pages alone and the last 60 pages were typed by A and B together. How much time (in hours) will be taken to type the complete book?
A) 24 B) 20 C) 12 D) 15
Answers
Answered by
0
20 hours will be taken to type the complete box.
hope this helps you
Similar questions