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_48 (sr INTEGER, average VARCHAR, balls_faced VARCHAR)
### Question:
Which average S.R. has an Average of 39.13 and Balls Faced larger than 318?
### Answer:
SELECT AVG(sr) FROM table_name_48 WHERE average = 39.13 AND balls_faced > 318