Question

One year, Super Bowl commercial time sold for $4.5 million for 30 seconds of air time.
What was the price per second. Round to the nearest cent.

If I take 4,500,000 and divide by 30, I get $150,000. I'm not sure this seems right though because there are 60 seconds in a minute, not 30. Does that matter?

Question b related to this is How much air time could you get that year for three million dollars? Assume that air time could be purchased in increments smaller than 30 seconds. Round to the nearest second. If I assume the $150,000 is correct for purposes of solving this, $3,000,000/$150,000 would equal 20, so would that be 20 minutes of air time?

Answer 1

4,500,000 /30 = 150,000

No, there is nothing about minutes in this problem

Answer 2

150,000 $/sec * t sec = 3,000,000

t = 3,000 / 150

t = 20 seconds

Again, nothing about minutes here, all is in seconds

Of course we happen to know that 20 seconds is 1/3 of a minute :)