An automobile manufacturing plant producedvehicles today:were sedans,were vans, andwere trucks. Plant managers are going to choose two of these...

An automobile manufacturing plant producedvehicles today:were sedans,were vans, andwere trucks. Plant managers are going to choose two of these vehicles for thorough inspection. The first vehicle will be chosen at random, and then the second vehicle will be chosen at random from the remaining vehicles. What is the probability that two vans will be selected?

Report your answer as an exact fraction.