A dilution is prepared at a ratio of 1:10. Now there is 20 ml of concentrated solution. How many ml of the diluted solution is prepared?
一种稀释液按1：10的比例配制而成，如今有浓缩液20毫升，配制成的稀释液有多少毫升？
<gadget id="calculator">1 / 10</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>220</output>

<result>220</result>