Pool A stores 40 tons of water, and pool B stores 24 tons of water. The water in pool A flows into pool B at 2 tons per hour. After how many hours, the water in pool B is three times that of pool A.
甲水池存水40吨，乙水池存水24吨，甲水池的水每小时流入乙水池2吨，多少小时后，乙水池的水是甲水池水的3倍．
<gadget id="calculator">40 + 24</gadget>
<output>64</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">64 * (3/4)</gadget>
<output>48</output>

<gadget id="calculator">48 - 24</gadget>
<output>24</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<result>12</result>