If, in this hypothetical, the earth’s population is currently 60 million and doubles every 40 years, the population will be 246 million by the time you’re 95.
Step-by-step explanation:
95 - 14 = 81 years
This means that the population will double twice in that time so:
60 million x 2 = 120 million
120 million x 2 = 240 million
Now, 240 million is only what the population will be in 80 years, we want to know what it will be in 81 years, so let’s calculate that pesky year out.
The third time the population doubles, it will increase by 240 million so we need to divide that by 40 to see how much the population increases in a single year:
240/40 = 6
Now we can just add that to the value we found earlier:
240 + 6 = 246
And that’s our answer!