Practical Mathematics for Grade 11, Problem ID: 4925

Practical Mathematics K11Anna (A), Bill (B), Cindy (C), and Daniel (D) work on a project.

(1) Together, A, B, and C can complete it in 100 days.
(2) Together, B, C, and D can complete it in 101 days.
(3) Together, C, D, and A can complete it in 102 days.
(4) Together, D, A, and B can complete it in 103 days.

Rank them from the best to the worst performer.


C > A > B > D C > B > A > DD > B > A > CD > A > B > C