If Kaylee and Isaiah work together on a project, they will complete it in 7 days. If Isaiah were to work with Julian on the same project, they will take a day longer. If Julian and Julie work together, they will take 200% more time than Kaylee and Isaiah. If Kaylee and Julie were to work together, how many more days will they take to complete the project compared to Isaiah and Julian working together?
Time taken by Kaylee and Isaiah in percent = 100%
Time taken by Julian and Julie = 100% + 200% = 300%

Time taken by Kaylee and Isaiah = 7 days ---- (1)
Time taken by Isaiah and Julian = 8 days ---- (2)
Time taken by Julian and Julie = 300% x 7 = 21 days ---- (3)

(1) + (2) + (3)
Kaylee + Isaiah + Isaiah + Julian + Julian + Julie → 7 + 8 + 21 = 36 days
Kaylee + 2 (Isaiah + Julian) + Julie → 36 days
Kaylee + Julie + 2 x 8 → 36 days
Kaylee + Julie → 36 - 16 = 20 days

More days to complete the project for Kaylee and Julie compared to Isaiah and Julian
= 20 - 8
= 12

Answer(s): 12