Error in pull up and pull down circuit

[MissP.25_5]

Hello.
What would happen if there's a mistake in the pull up circuit where nMOSFET is used in the pull up circuit while the pMOSFET is used in the pull down circuit?
What would happen to the action of the inverter, output voltage range and characteristics?
I have been trying to find some clues in my textbook but I don't get it.

 

[rude man]

That combination is possible if the circuit is reconfigured. Post the circuit you're wondering about and we can help you determine how it would behave.