Answer:
I have solved this problem on paper (Find pictures attached)
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>:</em><em>)</em>
Hey there,
Pretend that 50 = 100
And that 5 = 10.
I did a 100 test unit test, and I got 10% wrong.
If you think about this, the answer would be 90%
So, it's the same in this case,
50 in half of 100
5 is half of 10.
So . . .
This would mean that your correct answer would be 90% because 5 in this case is to be considered to be 10.
Your correct answer is
. . . .

Hope this helps
~Jurgen