I googled the meaning of 'tend to business', and dictionary says that the meaning is similar to 'do one's business'. But I don't understand its meaning in the context below. I wonder if the business is 'the problem' that the speaker is facing right now or 'something other' that he really has to do after quickly solving the problem.
Here is the example from a novel 'Baker's blue-jay yarn' by the Mark Twain.
'Why, I didn't hear it fall!' He cocked his eye at the hole again, and took a long look; raised up and shook his head; stepped around to the other side of the hole and took another look from that side; shook his head again. He studied awhile, then he just went into the details - walked round and round the hole and spied into it from every point of the compass. No use. Now he took a thinking attitude on the comb of the roof and scratched the back of his head with his right foot a minute, and finally says, 'Well, it's too many for me, that's certain; must be a mighty long hole; however, I ain't got no time to fool around here, I got to tend to business; I reckon it's all right - chance it, anyway.'