Add 10 kg of salt to 40 kg of brine containing 16% salt, what is the concentration of the brine at this time?
往40千克含盐16%的盐水中加入10千克盐，求这时盐水的浓度是多少．
<gadget id="calculator">16 / 100</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">40 * (4/25)</gadget>
<output>32/5 = around 6.4</output>

<gadget id="calculator">(32/5) + 10</gadget>
<output>82/5 = around 16.4</output>

<gadget id="calculator">40 + 10</gadget>
<output>50</output>

<gadget id="calculator">(82/5) / 50</gadget>
<output>41/125 = around 0.328</output>

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

<gadget id="calculator">(41/125) * 1</gadget>
<output>41/125 = around 0.328</output>

<result>41/125 = around 0.328</result>