If Raeann and Liam work together on a project, they will complete it in 10 days. If Liam were to work with Leah on the same project, they will take a day longer. If Leah and Jack work together, they will take 110% more time than Raeann and Liam. If Raeann and Jack were to work together, how many more days will they take to complete the project compared to Liam and Leah working together?
Time taken by Raeann and Liam in percent = 100%
Time taken by Leah and Jack = 100% + 110% = 210%

Time taken by Raeann and Liam = 10 days ---- (1)
Time taken by Liam and Leah = 11 days ---- (2)
Time taken by Leah and Jack = 210% x 10 = 21 days ---- (3)

(1) + (2) + (3)
Raeann + Liam + Liam + Leah + Leah + Jack → 10 + 11 + 21 = 42 days
Raeann + 2 (Liam + Leah) + Jack → 42 days
Raeann + Jack + 2 x 11 → 42 days
Raeann + Jack → 42 - 22 = 20 days

More days to complete the project for Raeann and Jack compared to Liam and Leah
= 20 - 11
= 9

Answer(s): 9