Table schema:
CREATE TABLE table_name_48 (rank INTEGER, nation VARCHAR, bronze VARCHAR, silver VARCHAR, gold VARCHAR)

Question: What is the average rank of west germany (frg), which has more than 1 silver, less than 11 gold, and 2 bronze medals?
SQL: SELECT AVG(rank) FROM table_name_48 WHERE silver > 1 AND gold < 11 AND bronze = 2 AND nation = "west germany (frg)"