A kind of sugar water, the ratio of sugar to water is 1:40, there are 20 grams of sugar, how many grams of this sugar water can be prepared.
一种糖水，糖与水的比是1：40，现有糖20克，能配制多少克这样的糖水．
<gadget id="calculator">1 + 40</gadget>
<output>41</output>

<gadget id="calculator">1 / 41</gadget>
<output>1/41 = around 0.02439</output>

<gadget id="calculator">20 / (1/41)</gadget>
<output>820</output>

<result>820</result>