A food factory packs a batch of candy. If each bag contains 250 grams, it takes 40 bags to fill it. Now each bag contains 125 grams. How many bags are needed to fill it? (in proportion)
食品厂包装一批糖果，如果每袋装250克，需40袋装完，现在每袋装125克，需多少袋正好装完？(用比例)
<gadget id="calculator">250 * 40</gadget>
<output>10_000</output>

<gadget id="calculator">10_000 / 125</gadget>
<output>80</output>

<result>80</result>