So that'll depend on why the black holes arrive.

This article is about a binary system, which I would argue meets your criteria.

If the black hole were manufactured, and/or being used as a weapon, there's no reason it should hit the sun, and every reason it would hit a planet.

Now I think some of the other responses illustrated why this is not a problem if our current model of black holes is valid. The "what if" in one of those books I mentioned is "what if there was more exotic physics that allowed small black holes to be stable?"

Knocking a substantial number of small outer-solar-system objects onto hyperbolic orbits through the inner solar system would probably lead to a tremendous reorganization of humanity's space exploration priorities, and might achieve goals such as containment without escalating to ecocide.