Question

The given graph shows the percent of school age children who received immunizations for various illnesses between $1996$ and $2012$. What was the average rate of increase in the percent of children immunized over the given time period?

• A. $5\%$
• B. $10\%$
• C. $25\%$
• D. $70\%$

Answer 1

The correct option is A $5\%$

As per graph in $1996$, $10$ is the age of children immunized and in year $2012$ the age of children immunized is $90$.

Then difference between $1996$ to $2012=90-10=80$

Then difference between $1996$ to $2012=2012-1996=16$ years

Then increase in $\%=$ $\frac{80}{16}=5$ $\%$