Uncle Wang has a square vegetable field with a side length of 20 meters. If (3/5) of this field is planted with radishes, how many square meters is the area for planting radishes?
王伯伯有一块边长是20米的正方形菜地，如果这块地的(3/5)种萝卜，种萝卜的面积是多少平方米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">20 * 20 * (3/5)</gadget>
<output>240</output>

<result>240</result>