The research institute of the Academy of Agricultural Sciences has an experimental field of 400m**2. Firstly, (2/5) of the total area is designated for planting cabbage, and the remaining area is planted with tomatoes and cucumbers at a ratio of 3:5. What is the area for planting cucumbers?
农科院研究所有一块400m**2的实验田，先划出总面积的(2/5)种白菜，剩下的面积按3：5的比例种西红柿和黄瓜，种黄瓜的面积是多少？
<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">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">400 * (3/5) * (5/8)</gadget>
<output>150</output>

<result>150</result>