Experience the Tour de France (ETF) is a specialty travel agent. It arranges vacations for amateur cyclists who want to experience the

Tour de France by riding through one or more stages in the race. It has three people who take calls from clients. Each call lasts on

average 20 minutes, with a standard deviation of 40 minutes. A call arrives on average every 25 minutes with a standard deviation of

25 minutes.

On average, how many minutes does a caller wait before talking to an agent?

Note: Do not round intermediate calculations. Round your answer to 2 decimal places.