CREATE TABLE table_11413 ("Name" TEXT, "Builder" TEXT, "Type" TEXT, "Date" FLOAT, "Works number" FLOAT)

What is the total work number of Gowrie after 1875?
SELECT SUM("Works number") FROM table_11413 WHERE "Date" > '1875' AND "Name" = 'gowrie'
SELECT SUM("Works number") FROM "table_11413" WHERE "Date" > '1875' AND "Name" = 'gowrie'