There are two containers A and B filled with sulfuric acid. Container A contains 300 kg of sulfuric acid solution with a concentration of 16%, and container B contains 200 kg of sulfuric acid solution with a concentration of 40%. Question: How many kilograms of sulfuric acid solution are taken from the two containers A and B respectively and put into the other container, so that the concentration of the sulfuric acid solution in the two containers is the same?
有甲、乙两个装满硫酸的容器，甲容器中装有浓度为16%的硫酸溶液300千克，乙容器中装有浓度为40%的硫酸溶液200千克．问：从甲、乙两个容器各取多少千克硫酸溶液分别放入对方容器中，才能使这两个容器中硫酸溶液的浓度一样？
<gadget id="calculator">16 / 100</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">300 * (4/25)</gadget>
<output>48</output>

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

<gadget id="calculator">200 * (2/5)</gadget>
<output>80</output>

<gadget id="calculator">48 + 80</gadget>
<output>128</output>

<gadget id="calculator">300 + 200</gadget>
<output>500</output>

<gadget id="calculator">128 / 500</gadget>
<output>32/125 = around 0.256</output>

<gadget id="calculator">300 * (32/125)</gadget>
<output>384/5 = around 76.8</output>

<gadget id="calculator">(384/5) - 48</gadget>
<output>144/5 = around 28.8</output>

<gadget id="calculator">(2/5) - (4/25)</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">(144/5) / (6/25)</gadget>
<output>120</output>

<result>120</result>