There is a square nursery, one side is against the wall, and the other three sides are surrounded by bamboo fences. The total length of the bamboo fence is 150 meters. If 5 chrysanthemums can be planted per square meter in the nursery, how many chrysanthemums can be planted in this nursery?
有一个正方形苗圃，一面靠墙，其它三面围竹篱笆，竹篱笆的总长是150米，如果苗圃内每平方米能种5棵菊花，则这块苗圃能中多少棵菊花？
<gadget id="calculator">150 / 3</gadget>
<output>50</output>

<gadget id="calculator">50 * 50 * 5</gadget>
<output>12_500</output>

<result>12_500</result>