Its an activity based question:

Choose a 30 minute TV show geared towards children (for example
a cartoon on the Nickelodeon Channel or Disney Channel). As you
watch the episode, count the total number of commercials
broadcasted within those thirty minutes as well as the number from
that total that advertised junk food items*. Calculate the
percentage of the junk food commercials shown (the number of junk
food commercials divided by the total number of all commercials,
and multiplied by 100). Now choose a 30 minute TV show geared
toward an adult audience and complete the same counts (total number
of commercials, number of junk food commercials, percentage of junk
food commercials).

Use your calculations to discuss your findings with your
classmates in your initial response. Include in your discussion,
the titles of shows you watched, time of day broadcasted, your
calculated percentages and commercial trends (for example, many
cereal ads or fast food chain ads, etc). Compare the percentages
between the two shows and discuss your findings.