Mom is going to use sugar water in a ratio of 1:25. If you use 20 grams of sugar, how many grams of sugar water can you prepare?
妈妈准备按1：25的比例配用糖水，如果用糖20克，那么能配备多少克糖水．
<gadget id="calculator">20 * 25</gadget>
<output>500</output>

<gadget id="calculator">500 + 20</gadget>
<output>520</output>

<result>520</result>