How man teams had a total weight of 57.5?
CREATE TABLE table_2581397_3 (group VARCHAR, weight__kg_ VARCHAR)
SELECT COUNT(group) FROM table_2581397_3 WHERE weight__kg_ = "57.5"
### Context: CREATE TABLE table_2581397_3 (group VARCHAR, weight__kg_ VARCHAR) ### Question: How man teams had a total weight of 57.5? ### Answer: SELECT COUNT(group) FROM table_2581397_3 WHERE weight__kg_ = "57.5"