If Rebecca and Rael work together on a project, they will complete it in 10 days. If Rael were to work with Violet on the same project, they will take a day longer. If Violet and Samuel work together, they will take 50% more time than Rebecca and Rael. If Rebecca and Samuel were to work together, how many more days will they take to complete the project compared to Rael and Violet working together?
Time taken by Rebecca and Rael in percent = 100%
Time taken by Violet and Samuel = 100% + 50% = 150%

Time taken by Rebecca and Rael = 10 days ---- (1)
Time taken by Rael and Violet = 11 days ---- (2)
Time taken by Violet and Samuel = 150% x 10 = 15 days ---- (3)

(1) + (2) + (3)
Rebecca + Rael + Rael + Violet + Violet + Samuel → 10 + 11 + 15 = 36 days
Rebecca + 2 (Rael + Violet) + Samuel → 36 days
Rebecca + Samuel + 2 x 11 → 36 days
Rebecca + Samuel → 36 - 22 = 14 days

More days to complete the project for Rebecca and Samuel compared to Rael and Violet
= 14 - 11
= 3

Answer(s): 3