Question

Solve the problem.

During a 30-minute television show there are 4 commercial breaks. Each break has 3 commercials that are each 30 seconds long. The show is on twice a week. How long does the show itself last?

________minutes

Answer 1

312 minutes

Explanation:

Each break lasts
`3\cdot 30=90` seconds that is 1.5 minutes. There are 4 commercial breaks. Total length of these breaks is
`1.5\cdot 4=6` minutes.

If there are 4 commercial breaks, then there are 5 parts of show (part-break-part-break-part-break-part-break-part). Each show lasts

`5\cdot 30+6=156` minutes.

The show is twice a week, so the show lasts

`156\cdot 2=312` minutes