A particular computer takes 12 minutes to download a 48​-minute TV show. How long will it take the computer to download a 2​-hour ​movie?

Answer 1

Use a ratio assuming a linear relationship with x as the unknown time.

Then,

12 minutes/48 minute show = x minutes/2 hour show = x minutes/120 minutes show

Then x = (12)(120)/(48) = 30 minutes