I take it you meant how many will it be covered in 1.5hrs.
[tex]\bf \begin{array}{ccll}
hours&miles\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1&660\\
1.5&m
\end{array}\implies \cfrac{1}{1.5}=\cfrac{660}{m}\implies m=\cfrac{1.5\cdot 60}{1}[/tex]