Question

Robert bought 99 oranges from a shop. Later he found that 22 oranges are rotten. What percenatge of oranges are edible?

• A. 77.78 %
• B. 76 %
• C. 22.22 %
• D. 80 %

Answer 1

The correct option is A 77.78 %

$\text{Number of oranges bought}=99$
$\text{Number of oranges rotten}=22$
$\text{Number of oranges edible}=99-22=77$
$\text{Fraction of oranges edible}=\frac{77}{99}$

Let's convert $\frac{77}{99}$ into a percentage

$\to \frac{77}{99}=\frac{77}{99}\times 100$

$=\frac{11\times 7}{11\times 9}\times 100$

$=\frac{7}{9}\times 100$

$=0.7778\times 100$

$=77.78$%

Hence, number of edible oranges is 77.78%.