There are 135 people in a sports centre

77 people use the gym
62 people use the swimming pool
65 people use the track
27 people use the gym and the pool
23 people use the pool and the track
31 people use the gym and the track
4 people use all three facilities
Given that a randomly selected person uses at least two facilities what is the probability they use all the facilities?

2 answers

What’s the answer
54