If Jonathan and Andrew work together on a project, they will complete it in 4 days. If Andrew were to work with Zoey on the same project, they will take a day longer. If Zoey and Anthony work together, they will take 200% more time than Jonathan and Andrew. If Jonathan and Anthony were to work together, how many more days will they take to complete the project compared to Andrew and Zoey working together?
Time taken by Jonathan and Andrew in percent = 100%
Time taken by Zoey and Anthony = 100% + 200% = 300%

Time taken by Jonathan and Andrew = 4 days ---- (1)
Time taken by Andrew and Zoey = 5 days ---- (2)
Time taken by Zoey and Anthony = 300% x 4 = 12 days ---- (3)

(1) + (2) + (3)
Jonathan + Andrew + Andrew + Zoey + Zoey + Anthony → 4 + 5 + 12 = 21 days
Jonathan + 2 (Andrew + Zoey) + Anthony → 21 days
Jonathan + Anthony + 2 x 5 → 21 days
Jonathan + Anthony → 21 - 10 = 11 days

More days to complete the project for Jonathan and Anthony compared to Andrew and Zoey
= 11 - 5
= 6

Answer(s): 6