Robert Krulwich/NPR. Add all of us up, all 7 billion human beings on earth, and clumped together we weigh roughly 750 billion pounds. That, says Harvard biologist E.O. Wilson, is more than 100 times the biomass of any large animal that's ever walked the Earth. And we're still multiplying.
Paper. The average price for 20 lb printer paper seems to run between $4 and $6 dollars for average quality paper, so we will use $5 for 500 sheets-or a penny a page, for both inkjet and laser printers. This is the type of paper used to print text, or text with some basic business graphics.nk for the Deskjet costs $15 for the black 60 cartridge, with an estimated page yield of 200 pages. The tri-color cartridge is $20, and has an approximate yield of 165 pages. Cost per page of black text is $15.00/200: $.075, or 7.5 cents a page for text.
1 Depending on the number of papers that you need to have copied and the time of the season, the cost to have copies done can vary anywhere from $0.10 to $0.70 per page. 2  Some businesses may offer discounts to those who make bulk copies.3  Color copies are going to cost more than black and white. Their enhanced copies in black and white can run $0.12, while their low-grade (value) color can cost $0.25. 2  Their best package, denoted as the color pack, can run $0.49 per page. 3  eHow.com claims that you should budget anywhere from $0.49 to $0.79, while double-sided color copies will be around $1 to $1.50.