Question

Mia is taking a multiple choice test with a total of 50 points available. Each question is worth exactly 2 points. What would be Mia's test score (out of 50) if she got 3 questions wrong? What would be her score if she got x questions wrong?

Answer 1

Mia's test score is 44 if she got 3 questions wrong.

Mia's test score is (50-2x) if she got x questions wrong.

Explanation:

It is given that, Mia is taking a multiple choice test with a total of 50 points available. Each question is worth exactly 2 points.

If she got 3 questions wrong, then

Deducted marks
`=2* 3=6`

Marks obtained by Mia = Total marks - Deducted marks

`=50-6`

`=44`

So, Mia's test score is 44 if she got 3 questions wrong.

If she got x questions wrong, then

Deducted marks
`=2* x=2x`

Marks obtained by Mia = Total marks - Deducted marks

`=50-2x`

So, Mia's test score is (50-2x) if she got x questions wrong.