If Chloe and Rachel work together on a project, they will complete it in 10 days. If Rachel were to work with Aria on the same project, they will take a day longer. If Aria and Layla work together, they will take 170% more time than Chloe and Rachel. If Chloe and Layla were to work together, how many more days will they take to complete the project compared to Rachel and Aria working together?
Time taken by Chloe and Rachel in percent = 100%
Time taken by Aria and Layla = 100% + 170% = 270%

Time taken by Chloe and Rachel = 10 days ---- (1)
Time taken by Rachel and Aria = 11 days ---- (2)
Time taken by Aria and Layla = 270% x 10 = 27 days ---- (3)

(1) + (2) + (3)
Chloe + Rachel + Rachel + Aria + Aria + Layla → 10 + 11 + 27 = 48 days
Chloe + 2 (Rachel + Aria) + Layla → 48 days
Chloe + Layla + 2 x 11 → 48 days
Chloe + Layla → 48 - 22 = 26 days

More days to complete the project for Chloe and Layla compared to Rachel and Aria
= 26 - 11
= 15

Answer(s): 15