A pea patch is twice as big as a radish patch. If one sixth of the pea patch is 5 square feet.  How much is a whole radish patch in square feet?
A whole pea patch is 5*6 = 
<gadget id="calculator">5*6</gadget>
<output>30</output>
30 square feet.
A radish patch is 30/2 = 
<gadget id="calculator">30/2</gadget>
<output>15</output>
15 square feet.

<result>15</result>