use xx=82 and x=2 do it correctly multiple upvotes for correct answer

. In the central railway station, 15 computerised reservation counters are available. A customer can book his/her ticket in any train on any day in any of these computerised reservation counters. The average time spent on each customer by each clerk is five minutes. Average arrivals per hour during three types of activity periods have been calculated and customers have been surveyed to determine how long they are willing to wait during each type of period. Customer's acceptable Type of period Arrivals per hour waiting time (minutes) 110+XX Peak 10+X Normal 60+XX 5+X Low 30+XX 2+X Making suitable assumptions on this queuing process, determine how many counters should be kept open during each type of period. XX = last two digits of your roll no. and X = last digit