How many Pole Positions were there on 30 March?
CREATE TABLE table_25213146_2 (pole_position VARCHAR, date VARCHAR)
SELECT COUNT(pole_position) FROM table_25213146_2 WHERE date = "30 March"
### Context: CREATE TABLE table_25213146_2 (pole_position VARCHAR, date VARCHAR) ### Question: How many Pole Positions were there on 30 March? ### Answer: SELECT COUNT(pole_position) FROM table_25213146_2 WHERE date = "30 March"