If Andrew and Roshel work together on a project, they will complete it in 5 days. If Roshel were to work with Natalie on the same project, they will take a day longer. If Natalie and Jamie work together, they will take 160% more time than Andrew and Roshel. If Andrew and Jamie were to work together, how many more days will they take to complete the project compared to Roshel and Natalie working together?
Time taken by Andrew and Roshel in percent = 100%
Time taken by Natalie and Jamie = 100% + 160% = 260%

Time taken by Andrew and Roshel = 5 days ---- (1)
Time taken by Roshel and Natalie = 6 days ---- (2)
Time taken by Natalie and Jamie = 260% x 5 = 13 days ---- (3)

(1) + (2) + (3)
Andrew + Roshel + Roshel + Natalie + Natalie + Jamie → 5 + 6 + 13 = 24 days
Andrew + 2 (Roshel + Natalie) + Jamie → 24 days
Andrew + Jamie + 2 x 6 → 24 days
Andrew + Jamie → 24 - 12 = 12 days

More days to complete the project for Andrew and Jamie compared to Roshel and Natalie
= 12 - 6
= 6

Answer(s): 6