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

Time taken by Anna and Kaylee = 10 days ---- (1)
Time taken by Kaylee and John = 11 days ---- (2)
Time taken by John and Mason = 280% x 10 = 28 days ---- (3)

(1) + (2) + (3)
Anna + Kaylee + Kaylee + John + John + Mason → 10 + 11 + 28 = 49 days
Anna + 2 (Kaylee + John) + Mason → 49 days
Anna + Mason + 2 x 11 → 49 days
Anna + Mason → 49 - 22 = 27 days

More days to complete the project for Anna and Mason compared to Kaylee and John
= 27 - 11
= 16

Answer(s): 16