How many laps were completed in grid 18?
CREATE TABLE table_name_20 (laps INTEGER, grid VARCHAR)
SELECT SUM(laps) FROM table_name_20 WHERE grid = 18
### Context: CREATE TABLE table_name_20 (laps INTEGER, grid VARCHAR) ### Question: How many laps were completed in grid 18? ### Answer: SELECT SUM(laps) FROM table_name_20 WHERE grid = 18