There are 2600 grams of solution in total in the two containers of A and B. Take (1/4) of the solution from container A and (1/5) of the solution from container B. As a result, there are 2000 grams of solution left in the two containers. Then the original B How many grams of solution are in the container.
AB两个容器中共有溶液2600克，从A容器中取出(1/4)的溶液，从B容器中取出(1/5)的溶液，结果两个容器中共剩下2000克溶液，那么原来B容器中有溶液多少克．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2_600 * (1/4)</gadget>
<output>650</output>

<gadget id="calculator">2_000 - 2_600</gadget>
<output>-600</output>

<gadget id="calculator">650 + (-600)</gadget>
<output>50</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - 1 - (1/5)</gadget>
<output>-1/5 = around -0.2</output>

<gadget id="calculator">(1/4) + (-1/5)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">50 / (1/20)</gadget>
<output>1_000</output>

<result>1_000</result>