If Ava and Audrey work together on a project, they will complete it in 8 days. If Audrey were to work with Risa on the same project, they will take a day longer. If Risa and Sofia work together, they will take 200% more time than Ava and Audrey. If Ava and Sofia were to work together, how many more days will they take to complete the project compared to Audrey and Risa working together?
Time taken by Ava and Audrey in percent = 100%
Time taken by Risa and Sofia = 100% + 200% = 300%

Time taken by Ava and Audrey = 8 days ---- (1)
Time taken by Audrey and Risa = 9 days ---- (2)
Time taken by Risa and Sofia = 300% x 8 = 24 days ---- (3)

(1) + (2) + (3)
Ava + Audrey + Audrey + Risa + Risa + Sofia → 8 + 9 + 24 = 41 days
Ava + 2 (Audrey + Risa) + Sofia → 41 days
Ava + Sofia + 2 x 9 → 41 days
Ava + Sofia → 41 - 18 = 23 days

More days to complete the project for Ava and Sofia compared to Audrey and Risa
= 23 - 9
= 14

Answer(s): 14