A parallelogram billboard has a base of 12.5 meters and a height of 6.4 meters. If 0.6 kilograms of paint is used per square meter, how many kilograms of paint should be prepared to decorate this billboard?
一块平行四边形广告牌，底是12.5米，高是6.4米．如果每平方米用油漆0.6千克，油饰这块广告牌要准备多少千克油漆？
<gadget id="calculator">12.5 * 6.4 * 0.6</gadget>
<output>48</output>

<result>48</result>