Answer:
The ratio of how much they have watched to how much they have left to see is 4 : 1.
Step-by-step explanation:
Consider that the total duration of the film is, 1.
It is provided that James and Cameron paused when there is one-fifth left to watch.
That is, they have already watched, [tex]1-\frac{1}{5}=\frac{4}{5}[/tex] th of the film.
Compute the ratio of how much they have watched to how much they have left to see as follows:
[tex]\frac{\text{Duration Watched}}{\text{Duration Left}}=\frac{4/5}{1/5}=\frac{4}{1}=4:1[/tex]
Thus, the ratio of how much they have watched to how much they have left to see is 4 : 1.
