CREATE TABLE table_204_761 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

what is the total number of silver medals won by russia , norway , and sweden combined ?
SELECT SUM("silver") FROM table_204_761 WHERE "nation" IN ('russia', 'norway', 'sweden')
SELECT SUM("silver") FROM "table_204_761" WHERE "nation" IN ('russia', 'norway', 'sweden')