CREATE TABLE table_30111 ("Player" CLOB, "Matches" FLOAT, "Overs" CLOB, "Wickets" FLOAT, "Average" CLOB, "Economy" CLOB, "BBI" CLOB, "4wi" FLOAT)

What was the BBI for the bowler whose average is 24.50?
SELECT "BBI" FROM table_30111 WHERE "Average" = '24.50'
SELECT "BBI" FROM "table_30111" WHERE "Average" = '24.50'