A food packaging factory packs a batch of candy. If each bag contains 250 grams, it takes 120 bags to fill it. Now it is required to pack 500 grams per bag, how many bags can be filled? (Solve with ratio)
食品包装厂包装一批糖果，如果每袋装250克，需120袋才能装完．现在要求每袋装500克，需多少袋可以装完？(用比例解)
<gadget id="calculator">250 * 120</gadget>
<output>30_000</output>

<gadget id="calculator">30_000 / 500</gadget>
<output>60</output>

<result>60</result>