If Sophia and Chloe work together on a project, they will complete it in 6 days. If Chloe were to work with Levi on the same project, they will take a day longer. If Levi and Lily work together, they will take 200% more time than Sophia and Chloe. If Sophia and Lily were to work together, how many more days will they take to complete the project compared to Chloe and Levi working together?
Time taken by Sophia and Chloe in percent = 100%
Time taken by Levi and Lily = 100% + 200% = 300%

Time taken by Sophia and Chloe = 6 days ---- (1)
Time taken by Chloe and Levi = 7 days ---- (2)
Time taken by Levi and Lily = 300% x 6 = 18 days ---- (3)

(1) + (2) + (3)
Sophia + Chloe + Chloe + Levi + Levi + Lily → 6 + 7 + 18 = 31 days
Sophia + 2 (Chloe + Levi) + Lily → 31 days
Sophia + Lily + 2 x 7 → 31 days
Sophia + Lily → 31 - 14 = 17 days

More days to complete the project for Sophia and Lily compared to Chloe and Levi
= 17 - 7
= 10

Answer(s): 10