How many different numbers of total dances are there for the couple ranked at number 6?
CREATE TABLE table_20424140_3 (
    number_of_dances VARCHAR,
    place VARCHAR
)
SELECT COUNT(number_of_dances) FROM table_20424140_3 WHERE place = 6
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many different numbers of total dances are there for the couple ranked at number 6? ### Input: CREATE TABLE table_20424140_3 (
    number_of_dances VARCHAR,
    place VARCHAR
) ### Response: SELECT COUNT(number_of_dances) FROM table_20424140_3 WHERE place = 6