Question

John scores 30 marks out of 50 marks in his mathematics test. His score in percentage will be ​​

• A. 30%
• B. 50%
• C. 60%
• D. 80%

Answer 1

The correct option is C 60%

As John scores 30 marks out of 50, his score can be expressed as the fraction $\frac{30}{50}$.

Converting the denominator to 100, you get:

$\frac{30}{50}=\frac{30\times 2}{50\times 2}=\frac{60}{100}$

Percentages are fractions with 100 as their denominator.

$⟹\frac{60}{100}=60\text{\%}$

∴ John had scored 60% in his test.