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?  Choose the most appropriate option.
A) 3 hours
B) 6 hours
C) 4 hours
D) 8 hours
E) 10 hours
Number of pages typed by Ronald in one hour = 32/6 = 16/3   Number of pages typed by Elan in one hour = 40/5= 
<gadget id="calculator">40/5</gadget>
<output>8</output>
8   Number of pages typed by both in one hour= ((16/3) + 8) = 40/3   Therefore, time taken by both to type 110 pages = 110 x 3/40 = 8 hours.   ANSWER:8 hours
<result>D</result>
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?