Answer:
The answer is 4.77 customers/hr
Explanation:
First, we make a table:
12am ------- 35
1am --------- 28
2am --------- 15
3am ---------- 5
4am ---------- 2
5am ---------- 1
Number of staff --- 3
Number of hours worked --- 6 hrs
Total number of hours worked by all the staff --- 3 X 6 = 18 hrs.
Average productivity per worker:
(35+28+15+5+2+1)customers/18 hrs
= 86 customers/18 hrs
= 4.77 customers/hr