Question

Study the bar graph and answer the question given below:

What was the percentage increase in the production of oil from $2009$ to $2010$?

• A. $10\%$
• B. $15\%$
• C. $20\%$
• D. $25\%$

Answer 1

The correct option is D $25\%$

Percentage we can get easily by getting the difference between two and then by finding that difference is what percent of the initial value.
So Percentage $=\frac{50-40}{40}\times 100\%$
$=25\%$
So there was increase of $25\%$ from the year $2009$ and $2010$