Given data:
The numbers of student like comedies are c=12.
The numbers of student like drama are d=18.
The numbers of student like documentaries are D=13.
The numbers of student like new program are n=7.
The expression for the perecentage of the students who like comedies is,
[tex]p=\frac{c}{c+d+D+n}\times100[/tex]Substitute the given values in the above expression.
[tex]\begin{gathered} p=\frac{12}{(12+18+13+7)}\times100 \\ =24\text{ percentage} \end{gathered}[/tex]Thus, the perecentage of the students who like comedies is 24%.