I will travel paris for 4 days.
1st day I will come from CDG airport and will go to versailles and return to a hotel near nation. All other days I will just use 2 times metro line zone 1, and last day I will go to CDG again. Now which kind of ticket should I buy?

I heard that I can use carnet for paris zone 1 ,2 but not to versailles or CDG. but otherwise navigo will be too costly for visiting versailles 1 time and CDG come n go.

so