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_19787093_1 (till_mathura VARCHAR, till_agra VARCHAR)
### Question:
How many have the Till Agra of 500?
### Answer:
SELECT COUNT(till_mathura) FROM table_19787093_1 WHERE till_agra = 500