Please written by computer source

Busses arrive a hostel at a rate of 1=17 per hour, The service rate is p 19 per hour. a) In minutes, what is the average amount of time that a transport vehicle will spend being served by the workers? b) On average, how many vehicles are at the loading bay, including vehicles waiting and vehicles being served? c) On average, how many minutes will a vehicle spend in the loading bay queue before it starts being served d) On average, how many minutes will a vehicle spend at the loading bay in total