CREATE TABLE table_64031 ("Position" FLOAT, "Gymnast" CLOB, "A Score" FLOAT, "B Score" FLOAT, "Total" FLOAT)

Which B Score has a Total larger than 15.325, and an A Score smaller than 6.4?
SELECT SUM("B Score") FROM table_64031 WHERE "Total" > '15.325' AND "A Score" < '6.4'
SELECT SUM("B Score") FROM "table_64031" WHERE "A Score" < '6.4' AND "Total" > '15.325'