Ruling Double Weakness?

[Luispipe8]

Card in question:

So, this Pokémon has a [C][P] Weakness. What would happen if a Pokémon with both types (let's say a mirror match) attacks this one? Is the Weakness quadruplicated, resulting in a whopping 600 damage?

 

[CarlosDuranJr]

Yes, yes it would.

 

[Luispipe8]

Wow, that's a really hard hit. Thanks, Carlos!