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_221315_3 (max_mach VARCHAR, max_speed__mph_ VARCHAR)
### Question:
What was the max mach when the maximum speed was 3887?
### Answer:
SELECT max_mach FROM table_221315_3 WHERE max_speed__mph_ = 3887