In the second channel, the film is divided into 10-minute segments with one-minute advertising breaks inserted between them. On which channel will the film end earlier?

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On the first channel, 22 minutes pass between the start of each part and the start of the next. During this time, on the second channel, two 10-minute parts and two 2-minute advertising breaks will be shown. Therefore, the start of each part on the first channel corresponds to the same moment of the film on the second channel. When the last part starts on the first channel, 20 minutes will remain until the end of the film, and there will be no more advertisements. On the second channel, however, two 10-minute parts with 1-minute advertising breaks will be shown, so the film on the first channel will end one minute earlier.

## Answer

On the first channel