Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan 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]7 hours 30 minutes

[B]8 hours

[C]8 hours 15 minutes

[D]8 hours 25 minutes

**8 hours 15 minutes**

Ronald’s 1 hour’s work

Pages typed in 6 hrs. = 32, Pages typed in 1 hr

Elan’s 1 hour’s work = 8 pages

1 hour’s work of the both

∴ Required Time

Hence option [C] is correct answer.