If Kaylee and Amelia work together on a project, they will complete it in 8 days. If Amelia were to work with Samantha on the same project, they will take a day longer. If Samantha and Isaac work together, they will take 150% more time than Kaylee and Amelia. If Kaylee and Isaac were to work together, how many more days will they take to complete the project compared to Amelia and Samantha working together?
Time taken by Kaylee and Amelia in percent = 100%
Time taken by Samantha and Isaac = 100% + 150% = 250%

Time taken by Kaylee and Amelia = 8 days ---- (1)
Time taken by Amelia and Samantha = 9 days ---- (2)
Time taken by Samantha and Isaac = 250% x 8 = 20 days ---- (3)

(1) + (2) + (3)
Kaylee + Amelia + Amelia + Samantha + Samantha + Isaac → 8 + 9 + 20 = 37 days
Kaylee + 2 (Amelia + Samantha) + Isaac → 37 days
Kaylee + Isaac + 2 x 9 → 37 days
Kaylee + Isaac → 37 - 18 = 19 days

More days to complete the project for Kaylee and Isaac compared to Amelia and Samantha
= 19 - 9
= 10

Answer(s): 10