If Emily and Violet work together on a project, they will complete it in 9 days. If Violet were to work with Ellie on the same project, they will take a day longer. If Ellie and Isaiah work together, they will take 200% more time than Emily and Violet. If Emily and Isaiah were to work together, how many more days will they take to complete the project compared to Violet and Ellie working together?
Time taken by Emily and Violet in percent = 100%
Time taken by Ellie and Isaiah = 100% + 200% = 300%

Time taken by Emily and Violet = 9 days ---- (1)
Time taken by Violet and Ellie = 10 days ---- (2)
Time taken by Ellie and Isaiah = 300% x 9 = 27 days ---- (3)

(1) + (2) + (3)
Emily + Violet + Violet + Ellie + Ellie + Isaiah → 9 + 10 + 27 = 46 days
Emily + 2 (Violet + Ellie) + Isaiah → 46 days
Emily + Isaiah + 2 x 10 → 46 days
Emily + Isaiah → 46 - 20 = 26 days

More days to complete the project for Emily and Isaiah compared to Violet and Ellie
= 26 - 10
= 16

Answer(s): 16