The dielectric constant of ZnO is around 10 to 11, and that of MoO3 should be between 18 to 20. When you mix both of them, it depends on the volume fraction, and can be easily estimated.
@Prof K. Sreenivas Thank you for the answer.. I want to know what would be the value.. Will it be an average of both? or sum or difference of both ZnO and MoO3?