What is the probability that only one finds a parking space? Two friends, one on a bike and the other in a car, arrive together at a parking lot. The chance that the one in the car will find a parking space is 0.1, and the one on the bike not finding a parking space is 0.1. What is the probability that only one of them finds a parking space?

If only one of them is able to park, then one of two things happened

* one parked the bike and the other did not park the car

* one parked the car and the other did not park the bike




Those can be computed separately and should let you arrive with ease to the final answer.