Xingxing Store shipped 12 boxes of apples, each weighing 15 kilograms, and each kilogram sold for 3 yuan. How much can it sell for in total?
兴兴商店运来12箱苹果，每箱重15千克，每千克卖3元，一共可以卖多少元？
<gadget id="calculator">15 * 12 * 3</gadget>
<output>540</output>

<result>540</result>