If Emma and Jayden work together on a project, they will complete it in 10 days. If Jayden were to work with Elizabeth on the same project, they will take a day longer. If Elizabeth and Samantha work together, they will take 120% more time than Emma and Jayden. If Emma and Samantha were to work together, how many more days will they take to complete the project compared to Jayden and Elizabeth working together?
Time taken by Emma and Jayden in percent = 100%
Time taken by Elizabeth and Samantha = 100% + 120% = 220%

Time taken by Emma and Jayden = 10 days ---- (1)
Time taken by Jayden and Elizabeth = 11 days ---- (2)
Time taken by Elizabeth and Samantha = 220% x 10 = 22 days ---- (3)

(1) + (2) + (3)
Emma + Jayden + Jayden + Elizabeth + Elizabeth + Samantha → 10 + 11 + 22 = 43 days
Emma + 2 (Jayden + Elizabeth) + Samantha → 43 days
Emma + Samantha + 2 x 11 → 43 days
Emma + Samantha → 43 - 22 = 21 days

More days to complete the project for Emma and Samantha compared to Jayden and Elizabeth
= 21 - 11
= 10

Answer(s): 10