Aim to perform 1 - 2 sets of as many exercises as you feel comfortable with, ideally 10 - 12 reps, for all 6 exercises, however if you feel tired just to the first 4.
If you don't have access to the gym equipment then look at performing 2 different Adductor / Thigh Exercises that are suitable for your fitness level, our members area can give you some good ideas.