Qual é o ranking médio da Alemanha Ocidental (FRG), que tem mais de 1 prata, menos de 11 de ouro e 2 de bronze?
CREATE TABLE table_name_48 (rank INTEGER, nation VARCHAR, bronze VARCHAR, silver VARCHAR, gold VARCHAR)
SELECT AVG(rank) FROM table_name_48 WHERE silver > 1 AND gold < 11 AND bronze = 2 AND nation = "west germany (frg)"