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_85 (laps INTEGER, time_retired VARCHAR, driver VARCHAR)
### Question:
how many laps have a time/retired of +1 lap and mark blundell is the driver?
### Answer:
SELECT AVG(laps) FROM table_name_85 WHERE time_retired = "+1 lap" AND driver = "mark blundell"