Versailles-- RER Fare from d'Orsay station

It's about 15 Euros. Once you get on the train, count on spending less than an hour in transit (each way).


I'll try to find the exact fare!

I'm trying to figure out the fare to Versailles Chateau from Musee d'Orsay RER station, but that kind of info does not appear to be available on the ratp.fr website.
Does anyone know the approx. rountrip fare? Is info on point-to-point fares available someplace else?
Merci.
Chris