The phrase "a solid answer to" is correct and usable in written English.
You can use it when referring to a reliable or satisfactory response to a question or problem.
Example: "After much discussion, we finally arrived at a solid answer to the issue at hand."
Alternatives: "a reliable response to" or "a satisfactory solution to".
One of the easiest ways you can ensure a solid answer to a competency-based question is by being specific.
Yahoo! has fared less well with its social-networking site, Yahoo! 360, and is now negotiating to buy Facebook, a networking site used by many American college students.But none of these is a solid answer to Yahoo!'s woes.
As early as next month, researchers will begin trials in West Africa to find a solid answer to the key question: Do the treatments work?
Overall, these statistical results and analysis on the variations of attractiveness taken together allow for a solid answer to the second research question posed here in this paper of whether an intellectual property intervention (a managerial change in licensing schema).
Nokia has long been struggling to come up with a solid answer to Apple's iPhone and the steamroll that is Android in the global smartphone segment, which is the main reason for its continued decline.
Be prepared to answer any questions from the customer i.e. "What is there in your product or service that other people do not have?" If you have a solid answer to this question, you are right on track.
Although quickly reviewed, it cannot be denied that the available data are far from providing an evidence-based solid answer to our question.
In an interview you may have as little as half an hour to give a stunning, or at least solid, answer to the one main question from each panel member.
Asked what ever happened to Doug and Patti, Jinkins hesitated to provide a solid answer.
JON LEE ANDERSON: I'd like to provide a solid answer but it would be reckless of me.
