The content of pure alcohol in type A alcohol is 40%, the content of pure alcohol in type B alcohol is 36%, and the content of pure alcohol in type C alcohol is 35%, which is mixed with 33 liters of 38.5% alcohol. The alcohol is 9 liters more, so how many liters of type A alcohol is there?
A种酒精中纯酒精的含量为40%，B种酒精纯酒精的含量为36%，C种酒精纯酒精的含量为35%，配制成38.5%的酒精33升，其中B种酒精比C种酒精多9升，那么其中A种酒精有多少升？
<gadget id="calculator">38.5 / 100</gadget>
<output>0.385</output>

<gadget id="calculator">36 / 100</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">0.385 - (9/25)</gadget>
<output>0.025</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) - 0.385</gadget>
<output>0.015</output>

<gadget id="calculator">0.025 / 0.015</gadget>
<output>1.666667</output>

<gadget id="calculator">9 * 1.666667</gadget>
<output>15.000003</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(9/25) + (7/20)</gadget>
<output>71/100 = around 0.71</output>

<gadget id="calculator">(71/100) / 2</gadget>
<output>71/200 = around 0.355</output>

<gadget id="calculator">0.385 - (71/200)</gadget>
<output>0.03</output>

<gadget id="calculator">0.03 / 0.015</gadget>
<output>2</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">15.000003 + 6</gadget>
<output>21.000003</output>

<result>21.000003</result>