Question

Jordan got 27 out of 90 correct in his test. What fraction of the marks did he get wrong? Give your answer in its simplest form.

Answer 1

`(7)/(10)`

Step-by-step explanation:

It is given that Jordan got 27 out of 90 correct in his test.

Total marks = 90

Correct answers = 27

Incorrect answers = 90 -27 = 63

The fraction of the marks he did wrong.

`\frac{\text{Incorrect answers}}{\text{Total marks}}=(63)/(90)`

Simplify the above expression.

`\frac{\text{Incorrect answers}}{\text{Total marks}}=(7)/(10)`

Therefore, the fraction of the marks he did wrong is 7/10.

Answer 2

90-27=63

therefore the student got 63 questions wrong in a test of 90

i.e 63/90

In its simplest form 7/10