Question

Sam's Swimming Pool Cleaning has a annual net income of $46,900. Sam charges $25 per week for each of his customers for 52 weeks. His annual operating expenses, including labor and supplies, are $48,000. How many customers does Sam's Swimming Pool Cleaning have?
a.
21
b.
38
c.
44
d.
73

Answer 1

Revenue per customer per year = $25 × 52 = $1,300.

Let n = number of customers. Net income = revenue − expenses:
n(1,300) − 48,000 = 46,900
n(1,300) = 94,900
n = 94,900 / 1,300 = 73

Answer: d. 73