If Sebastian and Claire work together on a project, they will complete it in 4 days. If Claire were to work with Isaiah on the same project, they will take a day longer. If Isaiah and Ella work together, they will take 150% more time than Sebastian and Claire. If Sebastian and Ella were to work together, how many more days will they take to complete the project compared to Claire and Isaiah working together?
Time taken by Sebastian and Claire in percent = 100%
Time taken by Isaiah and Ella = 100% + 150% = 250%

Time taken by Sebastian and Claire = 4 days ---- (1)
Time taken by Claire and Isaiah = 5 days ---- (2)
Time taken by Isaiah and Ella = 250% x 4 = 10 days ---- (3)

(1) + (2) + (3)
Sebastian + Claire + Claire + Isaiah + Isaiah + Ella → 4 + 5 + 10 = 19 days
Sebastian + 2 (Claire + Isaiah) + Ella → 19 days
Sebastian + Ella + 2 x 5 → 19 days
Sebastian + Ella → 19 - 10 = 9 days

More days to complete the project for Sebastian and Ella compared to Claire and Isaiah
= 9 - 5
= 4

Answer(s): 4