If Christian and Wyatt work together on a project, they will complete it in 10 days. If Wyatt were to work with Josiah on the same project, they will take a day longer. If Josiah and Robert work together, they will take 180% more time than Christian and Wyatt. If Christian and Robert were to work together, how many more days will they take to complete the project compared to Wyatt and Josiah working together?
Time taken by Christian and Wyatt in percent = 100%
Time taken by Josiah and Robert = 100% + 180% = 280%

Time taken by Christian and Wyatt = 10 days ---- (1)
Time taken by Wyatt and Josiah = 11 days ---- (2)
Time taken by Josiah and Robert = 280% x 10 = 28 days ---- (3)

(1) + (2) + (3)
Christian + Wyatt + Wyatt + Josiah + Josiah + Robert → 10 + 11 + 28 = 49 days
Christian + 2 (Wyatt + Josiah) + Robert → 49 days
Christian + Robert + 2 x 11 → 49 days
Christian + Robert → 49 - 22 = 27 days

More days to complete the project for Christian and Robert compared to Wyatt and Josiah
= 27 - 11
= 16

Answer(s): 16