Come on. OK, there's more money!

Come on. OK, there's more money!

1. To bring 200 kilometers of water into the city, the task was given to the construction teams a and B, with a construction period of 50 days. After 30 days of cooperation, team B had to leave for 10 days because of other tasks, so team a speeded up and repaired 0.6 kilometers more every day. After 10 days, team B came back. In order to ensure the construction period, team a kept the same speed, and team B was faster than