If Jayden and Robert work together on a project, they will complete it in 5 days. If Robert were to work with Oliver on the same project, they will take a day longer. If Oliver and Amelia work together, they will take 100% more time than Jayden and Robert. If Jayden and Amelia were to work together, how many more days will they take to complete the project compared to Robert and Oliver working together?
Time taken by Jayden and Robert in percent = 100%
Time taken by Oliver and Amelia = 100% + 100% = 200%

Time taken by Jayden and Robert = 5 days ---- (1)
Time taken by Robert and Oliver = 6 days ---- (2)
Time taken by Oliver and Amelia = 200% x 5 = 10 days ---- (3)

(1) + (2) + (3)
Jayden + Robert + Robert + Oliver + Oliver + Amelia → 5 + 6 + 10 = 21 days
Jayden + 2 (Robert + Oliver) + Amelia → 21 days
Jayden + Amelia + 2 x 6 → 21 days
Jayden + Amelia → 21 - 12 = 9 days

More days to complete the project for Jayden and Amelia compared to Robert and Oliver
= 9 - 6
= 3

Answer(s): 3