CREATE TABLE table_42485 ("Rank" FLOAT, "Province" TEXT, "Population" FLOAT, "Area" FLOAT, "Density" FLOAT)

WHat is the number of Population has a Density of 50.09 and a Rank larger than 30?
SELECT SUM("Population") FROM table_42485 WHERE "Density" = '50.09' AND "Rank" > '30'
SELECT SUM("Population") FROM "table_42485" WHERE "Density" = '50.09' AND "Rank" > '30'