[tex]\begin{gathered} \text{Total number of students is }\Rightarrow200 \\ \frac{1}{5}\text{ can't drive}\Rightarrow200\times\frac{1}{5}=40\text{ students can't drive} \\ Number\text{ of students tthose can drive}\Rightarrow200-40=160\text{ students} \\ So, \\ \text{percentage}\Rightarrow\frac{160}{200}\times100=80\text{ \% students can drive.} \end{gathered}[/tex]