If Sebastian and Elijah work together on a project, they will complete it in 5 days. If Elijah were to work with Kaylee on the same project, they will take a day longer. If Kaylee and Noah work together, they will take 140% more time than Sebastian and Elijah. If Sebastian and Noah were to work together, how many more days will they take to complete the project compared to Elijah and Kaylee working together?
Time taken by Sebastian and Elijah in percent = 100%
Time taken by Kaylee and Noah = 100% + 140% = 240%

Time taken by Sebastian and Elijah = 5 days ---- (1)
Time taken by Elijah and Kaylee = 6 days ---- (2)
Time taken by Kaylee and Noah = 240% x 5 = 12 days ---- (3)

(1) + (2) + (3)
Sebastian + Elijah + Elijah + Kaylee + Kaylee + Noah → 5 + 6 + 12 = 23 days
Sebastian + 2 (Elijah + Kaylee) + Noah → 23 days
Sebastian + Noah + 2 x 6 → 23 days
Sebastian + Noah → 23 - 12 = 11 days

More days to complete the project for Sebastian and Noah compared to Elijah and Kaylee
= 11 - 6
= 5

Answer(s): 5