Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_2 (b_score INTEGER, total VARCHAR, a_score VARCHAR)
### Question:
Which B Score has a Total larger than 15.325, and an A Score smaller than 6.4?
### Answer:
SELECT SUM(b_score) FROM table_name_2 WHERE total > 15.325 AND a_score < 6.4