John wants to finish a show in 5 days.  There are 20 episodes and they are each 30 minutes long.  How many hours does he have to watch a day?
He wants to watch 20*30=
<gadget id="calculator">20*30</gadget>
<output>600</output>
600 minutes.
So he needs to watch 600/60=
<gadget id="calculator">600/60</gadget>
<output>10</output>
10 hours.
That means he needs to watch 10/5=
<gadget id="calculator">10/5</gadget>
<output>2</output>
2 hours a day.

<result>2</result>