Answer :
The correct answer is c) 10. On average, 160 people enter Starbucks every hour. This is calculated by dividing 60 minutes by the 6 minutes average time spent by one person and then multiplying by the average number of people present (16).
To calculate how many people enter Starbucks every hour on average, we should use the provided average time a person spends at Starbucks and the average number of people there at any given time. If on average a person spends 6 minutes at Starbucks, and we have 60 minutes in an hour, we can divide 60 by 6 to get the average number of people that can be served in an hour, which is 10 times.
However, since there are 16 people on average inside Starbucks at any time, this means people are coming in groups or there is a continuous flow. To find a single person's entry rate, we find out how many times a single 6-minute interval fits into an hour which is 60/6, giving us 10 which implies 10 people per hour for each spot available. But we have, on average, 16 spots, thus we multiply 10 by 16 to find the total flow of people per hour. Consequently, on average, 160 people (10 people per spot u00d7 16 spots) enter Starbucks every hour. Therefore, the correct answer is not listed in the options provided. Therefore, the correct answer is c) 10.
