CREATE TABLE table_73856 ("Result" CLOB, "Date" CLOB, "Race" CLOB, "Venue" CLOB, "Group" CLOB, "Distance" CLOB, "Weight  ( kg ) " CLOB, "Jockey" CLOB, "Winner/2nd" CLOB)

How man teams had a total weight of 57.5?
SELECT COUNT("Group") FROM table_73856 WHERE "Weight (kg)" = '57.5'
SELECT COUNT("Group") FROM "table_73856" WHERE "Weight (kg)" = '57.5'