The school plans to plant flowers in a rectangular open space 25 meters long and 15 meters wide. If more than 16 roses are planted per square meter, how many roses will be purchased in total?
学校打算在一块长25米、宽15米的长方形空地里种花．如果过每平方米种16株月季花，那么一共要购买多少株月季花？
<gadget id="calculator">25 * 15 * 16</gadget>
<output>6_000</output>

<result>6_000</result>