CREATE TABLE table_40666 ("Player" TEXT, "Club" TEXT, "League" FLOAT, "FA Cup" FLOAT, "FA Trophy" FLOAT, "League Cup" FLOAT, "Total" FLOAT)

Which FA Cup that has a League Cup larger than 3 and a League smaller than 16?
SELECT AVG("FA Cup") FROM table_40666 WHERE "League Cup" > '3' AND "League" < '16'
SELECT AVG("FA Cup") FROM "table_40666" WHERE "League Cup" > '3' AND "League" < '16'