According to a survey, 20 adults in Los Angeles watch an average of 3 hours of
television per day, and 40 adults in San Francisco watch an average of 2 hours
of television per day. On average, how many hours of television do the 60 adults
surveyed watch per day? Express your answer as a mixed number.
To find the average number of hours of television watched per day, we need to find the total number of hours of television watched by all the adults surveyed and divide that by the total number of adults surveyed.
In Los Angeles, the average number of hours of television watched per adult is 3 hours. With 20 adults surveyed, the total number of hours of television watched in Los Angeles is 3 x 20 = <<3*20=60>>60 hours.
In San Francisco, the average number of hours of television watched per adult is 2 hours. With 40 adults surveyed, the total number of hours of television watched in San Francisco is 2 x 40 = <<2*40=80>>80 hours.
Therefore, the total number of hours of television watched by all the adults surveyed is 60 + 80 = <<60+80=140>>140 hours.
The total number of adults surveyed is 60.
To find the average number of hours of television watched per adult, we divide the total number of hours of television watched by the total number of adults surveyed: 140 / 60 = <<140/60=2.3333333333333335>>2.33.
Therefore, on average, the 60 adults surveyed watch 2.33 hours of television per day.