Tim host a show and they film multiple episodes per day.  Each episode is 20 minutes long and it takes 50% longer than that to film each episode.  Each week they show 5 episodes.  How many hours would it take to film 4 weeks of episodes?
Each episode takes 20*.5=
<gadget id="calculator">20*.5</gadget>
<output>10</output>
10 minutes longer to film than it is.
So it takes 20+10=
<gadget id="calculator">20+10</gadget>
<output>30</output>
30 minutes.
They are filming 5*4=
<gadget id="calculator">5*4</gadget>
<output>20</output>
20 episodes.
So it takes 20*30=
<gadget id="calculator">20*30</gadget>
<output>600</output>
600 minutes.
This is equivalent to 600 / 60 = 
<gadget id="calculator">600/60</gadget>
<output>10</output>
10 hours.

<result>10</result>