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%. They are mixed together to obtain 11 liters of alcohol with a pure alcohol content of 38.5%. Among them, type B alcohol is 3 liters more than type C alcohol. So how many liters of alcohol is there in type A?
A种酒精中纯酒精的含量为40%，B种酒精中纯酒精的含量为36%，C酒精中纯酒精的含量为35%．它们混合在一起得到了纯酒精的含量为38.5%的酒精11升．其中B种酒精比C种酒精多3升．那么其中的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">3 * 1.666667</gadget>
<output>5.000001</output>

<gadget id="calculator">11 - 3 - 5.000001</gadget>
<output>2.999999</output>

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

<gadget id="calculator">2.999999 / 3</gadget>
<output>1</output>

<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<gadget id="calculator">5.000001 + 2</gadget>
<output>7.000001</output>

<result>7.000001</result>