The students watered the trees, each of them watered 3 trees, and 24 people just finished watering. If 12 people water the trees, how many trees will each water?
同学们浇树，每人浇3棵，24人正好浇完．如果12人浇树，每人浇几棵？
<gadget id="calculator">24 / 12</gadget>
<output>2</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>