Table schema:
CREATE TABLE table_name_10 (points_against VARCHAR, tries_against VARCHAR, played VARCHAR, losing_bonus VARCHAR)

Question: For teams with 22 matches played, a losing bonus of 3, and 45 tries against, what was the number of points against?
SQL: SELECT points_against FROM table_name_10 WHERE played = "22" AND losing_bonus = "3" AND tries_against = "45"