If Charlotte and Wyatt work together on a project, they will complete it in 5 days. If Wyatt were to work with Leah on the same project, they will take a day longer. If Leah and Noah work together, they will take 80% more time than Charlotte and Wyatt. If Charlotte and Noah were to work together, how many more days will they take to complete the project compared to Wyatt and Leah working together?
Time taken by Charlotte and Wyatt in percent = 100%
Time taken by Leah and Noah = 100% + 80% = 180%

Time taken by Charlotte and Wyatt = 5 days ---- (1)
Time taken by Wyatt and Leah = 6 days ---- (2)
Time taken by Leah and Noah = 180% x 5 = 9 days ---- (3)

(1) + (2) + (3)
Charlotte + Wyatt + Wyatt + Leah + Leah + Noah → 5 + 6 + 9 = 20 days
Charlotte + 2 (Wyatt + Leah) + Noah → 20 days
Charlotte + Noah + 2 x 6 → 20 days
Charlotte + Noah → 20 - 12 = 8 days

More days to complete the project for Charlotte and Noah compared to Wyatt and Leah
= 8 - 6
= 2

Answer(s): 2