CREATE TABLE table_name_77 (number_of_electorates__2009_ NUMBER, constituency_number VARCHAR2)

Which Number of electorates (2009) has a Constituency number of 46?
SELECT AVG(number_of_electorates__2009_) FROM table_name_77 WHERE constituency_number = "46"
SELECT AVG("number_of_electorates__2009_") FROM "table_name_77" WHERE "46" = "constituency_number"