equilibrium - Calculate pH of a mixture of a strong base and acid. Knowing only the pH, wt/v%, and volume of both solution.

Title explains all. I have been stuck on this for an hour and for some reason cannot understand it. I have tried to do an ICE table but get stuck halfway as I do not know whether I would use the w/v to calculate the molarity and use that to neutralize the acid with the base and find the "free" H+?

I appreciate any insight!