The school plans to plant clover and rose flowers in a green belt with an area of 400 square meters. The area of clover is 4 times that of rose flowers. What is the area of rose flower?
学校准备在一块面积400平方米的绿化带里栽种三叶草和月季花，三叶草的面积是月季花的4倍．月季花的面积是多少？
<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">400 / 5</gadget>
<output>80</output>

<result>80</result>