4. Karlo watched a movie that started at 5:50 PM. During the movie, there were two advertisements, one lasting 4 minutes and the other 6 minutes. The movie ended at 7:45 PM. How long would the movie have lasted without the advertisements?
4. 5. method

If we subtract the time spent showing advertisements from the total movie playback time, the remaining time will be how long the movie itself would last (without ads).

The advertisements last a total of 10 minutes. If the movie playback without ads started 10 minutes later (at 6 PM), the movie would end at the same time, i.e., at 7:45 PM.

The duration of the movie itself corresponds to the time from 6 PM to 7:45 PM, so the movie playback would last 1 hour and 45 minutes, or 105 minutes.