If Dylan and Emma work together on a project, they will complete it in 4 days. If Emma were to work with Zoey on the same project, they will take a day longer. If Zoey and Josiah work together, they will take 150% more time than Dylan and Emma. If Dylan and Josiah were to work together, how many more days will they take to complete the project compared to Emma and Zoey working together?
Time taken by Dylan and Emma in percent = 100%
Time taken by Zoey and Josiah = 100% + 150% = 250%

Time taken by Dylan and Emma = 4 days ---- (1)
Time taken by Emma and Zoey = 5 days ---- (2)
Time taken by Zoey and Josiah = 250% x 4 = 10 days ---- (3)

(1) + (2) + (3)
Dylan + Emma + Emma + Zoey + Zoey + Josiah → 4 + 5 + 10 = 19 days
Dylan + 2 (Emma + Zoey) + Josiah → 19 days
Dylan + Josiah + 2 x 5 → 19 days
Dylan + Josiah → 19 - 10 = 9 days

More days to complete the project for Dylan and Josiah compared to Emma and Zoey
= 9 - 5
= 4

Answer(s): 4