The fruit store brings in 30 boxes of apples, each weighing 25 kilograms, and sells them for 4 yuan per kilogram. How much can they sell in total?
水果商店运进30箱苹果，每箱25千克，每千克卖4元钱，一共可以卖多少元？
<gadget id="calculator">30 * 25 * 4</gadget>
<output>3_000</output>

<result>3_000</result>