Final answer:
A barber that takes 15 minutes per customer can serve 4 customers per hour, calculated by dividing 60 minutes by 15.
Step-by-step explanation:
The question asks how many customers a barber can serve per hour if it takes 15 minutes to serve one customer. Calculating this involves a simple mathematical concept called unit conversion. Since there are 60 minutes in an hour, and it takes the barber 15 minutes to serve one customer, we divide 60 by 15 to determine the number of customers served in one hour.
60 minutes ÷ 15 minutes per customer = 4 customers per hour.
This means the capacity of the barber is 4 customers per hour. This calculation is an example of determining capacity and productivity which are important concepts in business operations and service management.