Answer:
19.7%
Step-by-step explanation:
Given that,
In 2000, the world population was 6.1 billion.
In 2015, the world population was 7.3 billion.
We need to find the percentage increase in population. The percent increase in this case is given by :
[tex]\%=\dfrac{7.3-6.1}{6.1}\times 100\\\\=19.67\%\\\\=19.7\%[/tex]
So, the increase in population is 19.7%.
