Question

In a box of 45 oranges, 9 rotten oranges are present. So, the percentage of rotten oranges present in the box is

• A. 20%
• B. 15%
• C. 25%
• D. 30%

Answer 1

The correct option is A 20%

Number of rotten oranges = 9
Total number of oranges present in the box = 45

$\therefore \text{Fraction of rotten oranges}=\frac{9}{45}$

Simplifying $\frac{9}{45}$ , we get:

$\frac{9}{45}=\frac{9÷9}{45÷9}=\frac{1}{5}$

We know to convert a fraction to percentage, we need the denominator as 100.

$\text{So, converting}\frac{1}{5}\text{into a fraction}$
$\text{out of 100, we get:}$

$\frac{1}{5}=\frac{1\times 20}{5\times 20}=\frac{20}{100}$

Hence, the percentage of rotten oranges in the box is 20%.