A storage tank stores 40 tons of water, and B storage tank stores 66 tons of water. Every minute, 2 tons of water are pumped from B tank and put into A tank. After how many minutes, the two storage tanks store the same amount of water?
甲贮水池存水40吨，乙贮水池存水66吨，每分钟从乙池中抽出2吨水放入甲池，多少分钟后，两个贮水池存水同样多？
<gadget id="calculator">66 - 40</gadget>
<output>26</output>

<gadget id="calculator">2 + 2</gadget>
<output>4</output>

<gadget id="calculator">26 / 4</gadget>
<output>13/2 = around 6.5</output>

<result>13/2 = around 6.5</result>