If Jeremiah and William work together on a project, they will complete it in 5 days. If William were to work with Michael on the same project, they will take a day longer. If Michael and Ethan work together, they will take 100% more time than Jeremiah and William. If Jeremiah and Ethan were to work together, how many more days will they take to complete the project compared to William and Michael working together?
Time taken by Jeremiah and William in percent = 100%
Time taken by Michael and Ethan = 100% + 100% = 200%

Time taken by Jeremiah and William = 5 days ---- (1)
Time taken by William and Michael = 6 days ---- (2)
Time taken by Michael and Ethan = 200% x 5 = 10 days ---- (3)

(1) + (2) + (3)
Jeremiah + William + William + Michael + Michael + Ethan → 5 + 6 + 10 = 21 days
Jeremiah + 2 (William + Michael) + Ethan → 21 days
Jeremiah + Ethan + 2 x 6 → 21 days
Jeremiah + Ethan → 21 - 12 = 9 days

More days to complete the project for Jeremiah and Ethan compared to William and Michael
= 9 - 6
= 3

Answer(s): 3