There are 12 watercolor pens in a box, and each one is 3 yuan. Teacher Zhang paid 360 yuan for the watercolor pen. How many boxes of watercolor pens did you buy?
一盒水彩笔有12支，每支3元．张老师买水彩笔付了360元．买了多少盒水彩笔？
<gadget id="calculator">12 * 3</gadget>
<output>36</output>

<gadget id="calculator">360 / 36</gadget>
<output>10</output>

<result>10</result>