Cup A contains 300 grams of a 17% solution, and Cup B contains 600 grams of a 23% solution. Now take the same total amount of solution from cups A and B, pour the solution taken from cup A into cup B, and pour the solution taken from cup B into cup A, so that the concentration of the solution in cups A and B same. What is the concentration of the two cups of solution now?
甲杯中有浓度为17%的溶液300克，乙杯中有浓度为23%的溶液600克．现在从甲、乙两杯中取出相同总量的溶液，把从甲杯中取出的溶液倒入乙杯中，把从乙杯中取出的溶液倒入甲杯中，使甲乙两杯溶液的浓度相同．问现在两杯溶液的浓度是多少？
<gadget id="calculator">138 / 600</gadget>
<output>23/100 = around 0.23</output>

<gadget id="calculator">51 / 300</gadget>
<output>17/100 = around 0.17</output>

<gadget id="calculator">(23/100) - (17/100)</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">0.23 / 300</gadget>
<output>0.000767</output>

<gadget id="calculator">0.23 / 600</gadget>
<output>0.000383</output>

<gadget id="calculator">0.17 / 300</gadget>
<output>0.000567</output>

<gadget id="calculator">0.17 / 600</gadget>
<output>0.000283</output>

<gadget id="calculator">0.000383 - 0.000567 - 0.000283</gadget>
<output>-0.000467</output>

<gadget id="calculator">0.000767 + (-0.000467)</gadget>
<output>0.0003</output>

<gadget id="calculator">(3/50) / 0.0003</gadget>
<output>200</output>

<gadget id="calculator">300 - 200</gadget>
<output>100</output>

<gadget id="calculator">17 / 100</gadget>
<output>17/100 = around 0.17</output>

<gadget id="calculator">100 * (17/100)</gadget>
<output>17</output>

<gadget id="calculator">23 / 100</gadget>
<output>23/100 = around 0.23</output>

<gadget id="calculator">(23/100) * 200</gadget>
<output>46</output>

<gadget id="calculator">17 + 46</gadget>
<output>63</output>

<gadget id="calculator">63 / 300</gadget>
<output>21/100 = around 0.21</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(21/100) * 1</gadget>
<output>21/100 = around 0.21</output>

<result>21/100 = around 0.21</result>