Question

The table shows marks scored by John in two tests. If the ratio of marks scored by John to the total marks are equivalent, then find x

Marks scored	$60$	$x$
Total marks	$100$	$75$

• A. $60$
• B. $80$
• C. $45$
• D. $75$

Answer 1

The correct option is C $45$

John scored 60 marks out 100.

Let the actual marks scored out of 75 be x.

Then we know,

$\frac{x}{75}=\frac{60}{100}$

$x=\frac{60}{100}\times 75$

$x=45\text{marks}$

Hence John scored 45 marks out of 75 marks.