CREATE TABLE table_name_46 (size VARCHAR2, metal VARCHAR2, denomination VARCHAR2)

What is the size that has nickel as the metal, and one rupee as the denomination?
SELECT size FROM table_name_46 WHERE metal = "nickel" AND denomination = "one rupee"
SELECT "size" FROM "table_name_46" WHERE "denomination" = "one rupee" AND "metal" = "nickel"