If Ethan and Leah work together on a project, they will complete it in 6 days. If Leah were to work with Noah on the same project, they will take a day longer. If Noah and Olivia work together, they will take 50% more time than Ethan and Leah. If Ethan and Olivia were to work together, how many more days will they take to complete the project compared to Leah and Noah working together?
Time taken by Ethan and Leah in percent = 100%
Time taken by Noah and Olivia = 100% + 50% = 150%

Time taken by Ethan and Leah = 6 days ---- (1)
Time taken by Leah and Noah = 7 days ---- (2)
Time taken by Noah and Olivia = 150% x 6 = 9 days ---- (3)

(1) + (2) + (3)
Ethan + Leah + Leah + Noah + Noah + Olivia → 6 + 7 + 9 = 22 days
Ethan + 2 (Leah + Noah) + Olivia → 22 days
Ethan + Olivia + 2 x 7 → 22 days
Ethan + Olivia → 22 - 14 = 8 days

More days to complete the project for Ethan and Olivia compared to Leah and Noah
= 8 - 7
= 1

Answer(s): 1