what is the ratio of question he answered correctly to the total number of questions on the test?

Given data:
The total numbers of questions are n=50.
The numbers of problems missed are m=6.
The number of questions answered is,
[tex]\begin{gathered} a=n-m \\ =50-6 \\ =44 \end{gathered}[/tex]The expression for the ratio is,
[tex]\begin{gathered} \frac{a}{n}=\frac{44}{50} \\ =\frac{22}{25} \end{gathered}[/tex]Thus, the option (D) is correct.