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

Time taken by Violet and Samantha = 10 days ---- (1)
Time taken by Samantha and Oliver = 11 days ---- (2)
Time taken by Oliver and Owen = 220% x 10 = 22 days ---- (3)

(1) + (2) + (3)
Violet + Samantha + Samantha + Oliver + Oliver + Owen → 10 + 11 + 22 = 43 days
Violet + 2 (Samantha + Oliver) + Owen → 43 days
Violet + Owen + 2 x 11 → 43 days
Violet + Owen → 43 - 22 = 21 days

More days to complete the project for Violet and Owen compared to Samantha and Oliver
= 21 - 11
= 10

Answer(s): 10