If Chloe and Bryan work together on a project, they will complete it in 10 days. If Bryan were to work with Lucas on the same project, they will take a day longer. If Lucas and Joshua work together, they will take 190% more time than Chloe and Bryan. If Chloe and Joshua were to work together, how many more days will they take to complete the project compared to Bryan and Lucas working together?
Time taken by Chloe and Bryan in percent = 100%
Time taken by Lucas and Joshua = 100% + 190% = 290%

Time taken by Chloe and Bryan = 10 days ---- (1)
Time taken by Bryan and Lucas = 11 days ---- (2)
Time taken by Lucas and Joshua = 290% x 10 = 29 days ---- (3)

(1) + (2) + (3)
Chloe + Bryan + Bryan + Lucas + Lucas + Joshua → 10 + 11 + 29 = 50 days
Chloe + 2 (Bryan + Lucas) + Joshua → 50 days
Chloe + Joshua + 2 x 11 → 50 days
Chloe + Joshua → 50 - 22 = 28 days

More days to complete the project for Chloe and Joshua compared to Bryan and Lucas
= 28 - 11
= 17

Answer(s): 17