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_70 (total INTEGER, b_score VARCHAR, gymnast VARCHAR)
### Question:
What is the total when the B Score was 9.15 for Cheng Fei ( chn )?
### Answer:
SELECT AVG(total) FROM table_name_70 WHERE b_score = 9.15 AND gymnast = "cheng fei ( chn )"