6 billion people in 6000 yrs,so how many people per year per person?

Answer 1

That's not an easy calculation and I'm at work so I don't want to do it. Do it for me please.

Answer 2

You obviously don't understand the nature of exponential growth, as it's pretty easy to get to 6 billion considering how many children a human can have.... *calculates*

Let's say every coupling was a completely monogomous one, and every couple out there had 2.5 kids (a fairly low estimate) 2.5/2=1.25

So every generation the population would be multiplied by 1.25. So the ammount of generations to get to the current population would be 2 * 1.25^x = 6,000,000,000 where the x is the total number of generations. This is also equally valid as 1.25^x = 3,000,000,000 or log(base 1.25) 3,000,000,000 = 97.793 That's 98 generations, each couple having 2.5 kids to get to 6 bil from 2. 6000/98=61 years.

Of course, there has been fluctuating populations all throughout human history, people had kids a LOT younger than this, and have had FAR more than 2.5 kids average a piece, especially in less developed countries, nor does everyone die off the second they have kids, as this method would indicate, which makes for greater populations than sizes of generations. So this question is of very little significance.

Even assuming the ridiculous notion of there been 6 people 4500 years ago (post-flood) if families averaged 3.5 kids, which is more realistic with people popping out babies all the time and limited contreception, they could get up to 6 billion within 37 generations. (6 * 1.75 * 1.75 etc. try it) that would mean 121 years per generation.

Answer 3

Uh, that calculation is impossible and bad science at that... Are you wanting an average? Because thats all you'll get....

Only a fool would beleive that you could calculate and extrapolate the population of the earth over the last 6000 years... .... Ok, fools and Christians. At 0BCE, the calculation is 600 people on earth - so I guess 600 people made the pyramids in Egypt and built all of Rome as well

I remind you that civilizations were fully formed in India 6000 years ago.

Answer 4

If you're going by that reasoning, wouldn't it be 6 billion people in about 4500 or 5000 years (the time after the Great Flood that destroyed all mankind with the exception of 8 people).

Answer 5

A great deal of that growth has happened very recently, exponential don't you know, there are more people alive today than have ever died.

Answer 6

The world is 4.6 billion years old.I am Christian.

Answer 7

Your question is not clear.

Maybe you mean this?

http://en.wikipedia.org/wiki/Image:Population_curve.svg

Nothing to do with religion, at any rate.

Answer 8

teenage pregancies

Answer 9

ruffly 1,000,000 a year