In sugar water with a sugar content of 10%, there are 20 grams of sugar, how many grams of water are there?
在含糖量为10%的糖水中，糖有20克，水有多少克．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">20 / (1/10)</gadget>
<output>200</output>

<gadget id="calculator">200 - 20</gadget>
<output>180</output>

<result>180</result>