Question

The following line graph shows the population of wolves in a forest in Alaska from the year 2014 to 2018.


Find the percentage increase in wolves population from 2014 to 2018.

• A. $100\%$
• B. $40\%$
• C. $500\%$
• D. $400\%$

Answer 1

The correct option is D $400\%$


As per the line graph,
Number of wolves in the year $2014=5$
Number of wolves in the year $2018=25$
Increase in wolves population $=25-5=20$

Percentage increase in wolves population
$=\frac{\text{Increase in wolves population}}{\text{Number of wolves in the year 2014}}\times 100\%$
$=\frac{20}{5}\times 100\%$
$=4\times 100\%$
$=400\%$

Option (d.) is the correct choice.