A food factory packs a batch of fruit candy. If each bag contains 250 grams, it takes 120 bags to fill it. Now it is required to pack 250 grams more per bag, how many bags can be filled. (Solution by ratio).
某食品厂包装一批水果糖，如果每袋装250克，需120袋才能装完．现在要求每袋多装250克，要多少袋可以装完了．(用比例解)．
<gadget id="calculator">250 * 120</gadget>
<output>30_000</output>

<gadget id="calculator">250 + 250</gadget>
<output>500</output>

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

<result>60</result>