If Charlotte and Gabriel work together on a project, they will complete it in 6 days. If Gabriel were to work with Isaiah on the same project, they will take a day longer. If Isaiah and Bryan work together, they will take 50% more time than Charlotte and Gabriel. If Charlotte and Bryan were to work together, how many more days will they take to complete the project compared to Gabriel and Isaiah working together?
Time taken by Charlotte and Gabriel in percent = 100%
Time taken by Isaiah and Bryan = 100% + 50% = 150%

Time taken by Charlotte and Gabriel = 6 days ---- (1)
Time taken by Gabriel and Isaiah = 7 days ---- (2)
Time taken by Isaiah and Bryan = 150% x 6 = 9 days ---- (3)

(1) + (2) + (3)
Charlotte + Gabriel + Gabriel + Isaiah + Isaiah + Bryan → 6 + 7 + 9 = 22 days
Charlotte + 2 (Gabriel + Isaiah) + Bryan → 22 days
Charlotte + Bryan + 2 x 7 → 22 days
Charlotte + Bryan → 22 - 14 = 8 days

More days to complete the project for Charlotte and Bryan compared to Gabriel and Isaiah
= 8 - 7
= 1

Answer(s): 1