In "Dr. Thorndyke's Case-Book" by Austin Freeman", ِDr. Gervis was talking to his friend, saying:
"I think I had better run up to town and confer with Thorndyke," said I. "How do the trains run?"
"There is a good train in about three-quarters of an hour," replied Foxton.
I think that he meant to ask him "how fast trains are?"
And the other meant to say "there is a fast train".
Is that right?