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

Time taken by Lilian and Mia = 8 days ---- (1)
Time taken by Mia and Gavin = 9 days ---- (2)
Time taken by Gavin and Sofia = 300% x 8 = 24 days ---- (3)

(1) + (2) + (3)
Lilian + Mia + Mia + Gavin + Gavin + Sofia → 8 + 9 + 24 = 41 days
Lilian + 2 (Mia + Gavin) + Sofia → 41 days
Lilian + Sofia + 2 x 9 → 41 days
Lilian + Sofia → 41 - 18 = 23 days

More days to complete the project for Lilian and Sofia compared to Mia and Gavin
= 23 - 9
= 14

Answer(s): 14