If Jamie and Evelyn work together on a project, they will complete it in 5 days. If Evelyn were to work with Josiah on the same project, they will take a day longer. If Josiah and Harris work together, they will take 140% more time than Jamie and Evelyn. If Jamie and Harris were to work together, how many more days will they take to complete the project compared to Evelyn and Josiah working together?
Time taken by Jamie and Evelyn in percent = 100%
Time taken by Josiah and Harris = 100% + 140% = 240%

Time taken by Jamie and Evelyn = 5 days ---- (1)
Time taken by Evelyn and Josiah = 6 days ---- (2)
Time taken by Josiah and Harris = 240% x 5 = 12 days ---- (3)

(1) + (2) + (3)
Jamie + Evelyn + Evelyn + Josiah + Josiah + Harris → 5 + 6 + 12 = 23 days
Jamie + 2 (Evelyn + Josiah) + Harris → 23 days
Jamie + Harris + 2 x 6 → 23 days
Jamie + Harris → 23 - 12 = 11 days

More days to complete the project for Jamie and Harris compared to Evelyn and Josiah
= 11 - 6
= 5

Answer(s): 5