What is the doubling time of prices which are increasing by 5 percent per year:
Since it is doubling, it must increase by 100%.
100 divided by 5 = 20
1 year ----> 5 %
x ------> 100 %
[tex]x=\frac{100}{5}=20[/tex][tex]100\div5=20\text{yrs}[/tex]Therefore the doubling time = 20yrs
