If they have 24 hours in a day, and use 1/6 of those 24 hours on news, they use 24*(1/6) or 4 hours on news. Assuming that they use the leftover time for just music and entertainment, we have 20h - 4h, so thats 20h. You were right. Not sure on their reasoning either.
Answer:
I believe the answer should be 4.1 units.
Example A: a/2
A fraction shows division as well! I’m not sure about the rest though....
