Write SQL query to solve given problem: How many goals were scored while the goalkeeper was on the ice in the 1924 WCHL by the goalie with the most goals scored?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT SUM(PostGA) FROM Goalies WHERE lgID = 'WCHL' AND year = '1924' GROUP BY playerID ORDER BY SUM(PostGA) DESC LIMIT 1