The Agricultural Science Research Institute has an experimental field of 200 square meters. First, set aside (2/5) of the total area to plant tomatoes, and plant eggplants and cucumbers in the rest according to the area ratio of 3:2. How big is the area for cucumbers?
农业科学研究所有一块200平方米的试验田，先划出总面积的(2/5)种西红柿，剩下的按3：2的面积比种茄子和黄瓜，种黄瓜的面积有多大？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">200 * (3/5) * (2/5)</gadget>
<output>48</output>

<result>48</result>