Question

Sam’s Swimming Pool Cleaning has an annual gross profit of $88,400. 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.
17
b.
35
c.
105
d.
68

Answer 1

Revenue per customer per year = $25 × 52 = $1,300.
Let N = number of customers. Then 1,300N − 48,000 = 88,400.
1,300N = 136,400 → N ≈ 136,400 ÷ 1,300 ≈ 105.

Answer: c. 105