If Ella and Harris work together on a project, they will complete it in 12 days. If Harris were to work with Mason on the same project, they will take a day longer. If Mason and Violet work together, they will take 200% more time than Ella and Harris. If Ella and Violet were to work together, how many more days will they take to complete the project compared to Harris and Mason working together?
Time taken by Ella and Harris in percent = 100%
Time taken by Mason and Violet = 100% + 200% = 300%

Time taken by Ella and Harris = 12 days ---- (1)
Time taken by Harris and Mason = 13 days ---- (2)
Time taken by Mason and Violet = 300% x 12 = 36 days ---- (3)

(1) + (2) + (3)
Ella + Harris + Harris + Mason + Mason + Violet → 12 + 13 + 36 = 61 days
Ella + 2 (Harris + Mason) + Violet → 61 days
Ella + Violet + 2 x 13 → 61 days
Ella + Violet → 61 - 26 = 35 days

More days to complete the project for Ella and Violet compared to Harris and Mason
= 35 - 13
= 22

Answer(s): 22