Question

a company produces on an average 4000 items per month for the first 3 months. how many items it must produce on an average per month over the next 9 months, to average 4375 items per month over the whole?

Answer 1

(4,000(3) + 9x)/12 = 4,375

12,000 + 9x = 52,500

9x = 40,500

x = 4,500 items