A firm has a total of 40 of all types of customers and the time required to service all those customers totals 100 hours per year on average for each customer. The firm’s salespeople have 1,000 hours of selling time per year, that was calculated by multiplying 25 hours of selling time per week that the salesperson typically has available to be on the job with the customer, multiplied by 40 weeks [remember to subtract vacations (3 weeks), holidays (1 week), sick days (2 weeks) and 30 training days (6 weeks) from 52]. How many salespeople are needed to cover the market?