Sant Boi de Llobregat - does my 30/50 cover it?

Erm, the title says it all, really. Would my 30/50 travelcard thing take me there, or would I have to buy an extension? If so, how much would that cost?

Ta!

I would really appreciate a speedy answer!!

Oh well, seeing as nearly 2 weeks have gone by, I don't think I will get my speedy answer...

But in case anyone's interested, it does indeed cover it. Carry on...