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_name_78 (works_number INTEGER, type VARCHAR, date VARCHAR)
### Question:
What is the total works number of the locomotive with 0-6-4t type after 1875?
### Answer:
SELECT SUM(works_number) FROM table_name_78 WHERE type = "0-6-4t" AND date > 1875