There is a glass of sugar water. The ratio of sugar to water is 1:20. If 2 grams of sugar are added, the weight of this glass of sugar water is 44 grams. What is the weight of water in the sugar water?
有一杯糖水，糖与水的比是1：20，如果再加入2克糖，这杯糖水重44克，求糖水中水的重量是多少克？
<gadget id="calculator">44 - 2</gadget>
<output>42</output>

<gadget id="calculator">1 + 20</gadget>
<output>21</output>

<gadget id="calculator">20 / 21</gadget>
<output>20/21 = around 0.952381</output>

<gadget id="calculator">42 * (20/21)</gadget>
<output>40</output>

<result>40</result>