GMAT Data Sufficiency (DS) | At a community center, three separate pumps- A, B, and C- started to f

At a community center, three separate pumps- A, B, and C- started to fill an empty swimming pool at 8:00 AM, and each pump worked at its own constant rate until the pool was full. Was the pool completely filled at 3:00 PM?


(1) Working alone, pump C could fill 3/10 of the pool in 126 minutes.
(2) Working together, pumps A and B could fill 1/8 of the pool in 55 minutes.