Question

The number of tigers in a national park is increased from 1200 to 1500 in a year. The percent increase in the number of tigers will be %.

• A. 20
• B. 25
• C. 33
• D. 40

Answer 1

The correct option is B 25

Initial number of tigers = 1200
Number of tigers after 1 year = 1500

You know, to find percentage increase, you use the formula:
$\%\text{increase}=\frac{\text{Final value - Initial value}}{\text{Initial value}}\times 100$

Increase in number = 1500 - 1200
= 300

$\therefore \text{Percentage increase}=\frac{\text{Increase in value}}{\text{Initial value}}\times 100$

$=\frac{300}{1200}\times 100$

$=\frac{1}{4}\times 100=25\%$

So, the number of tigers increased by $25\%$ in one year.