The phrase "a solution to the question" is correct and usable in written English.
It can be used when discussing an answer or resolution to a specific inquiry or problem.
Example: "After much deliberation, we finally arrived at a solution to the question of how to improve our workflow."
Alternatives: "an answer to the question" or "a resolution to the question".
If students understood the material well, they have a solution to the question that they can share with their peers.
His work in the former Yugoslavia helped lay the groundwork for a solution to the question of Kosovo's future.
The first model really a bunch of mathematical equations proposes a solution to the question of why gravity is so much weaker than the other fundamental physical forces.
Mr. Holder and a department task force must find a solution to the question of what to do with the remaining prisoners there and any apprehended in the future.
The purpose of the present paper is to give a solution to the question as to whether or not all stabilizing controllers for a plant are expressible in the model feedback control structure.
The objective in this study is to explore a solution to the question whether model input data having higher spatial resolution and higher model resolution, as most people assume, lead to better model performance within a given modelling objective.
This study "may have provided a solution" to the questions raised by other flood theories, says planetary geoscientist Lionel Wilson of Lancaster University in the U.K. Others are skeptical.
This pluralism is Fuller and Francke's best model for a solution to the Shia question.
Now how is that for a solution to the Irish question?
He does not have a solution to the biggest question of all: the future.
Jordan's King Abdullah insists that no regional coalition with Israel is conceivable without a solution to the Palestine question.
