Question

Express the following statement in the percentage form: ​
$21$ eggs out of $30$ are good. [2 Marks]

Answer 1

Step 1: Expressing the given statement in the form of percentage

Given, $21\text{eggs out of}30$

It can be written as $\frac{21}{30}$ (0.5 marks)

$\frac{21}{30}=\frac{21÷5}{30÷3}$ (0.5 marks)

$=\frac{7}{10}$ (0.5 marks)

$=\frac{7\times 10}{10\times 10}$

$=\frac{70}{100}=70\%$ (0.5 marks)

$\therefore 70\%$ eggs are good.

Hence, $21\text{eggs out of}30$ are good in percentage form is written as $70\%$.