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_27495117_3 (team VARCHAR, date_of_appointment VARCHAR)
### Question:
how many teams had an appointment date of 11 april 2011
### Answer:
SELECT COUNT(team) FROM table_27495117_3 WHERE date_of_appointment = "11 April 2011"