The school chorus team has 21 people, and the clarinet team has 12 people three times more than the chorus team. How many people are there in the clarinet team?
学校合唱队有21人，竖笛队比合唱队的3倍多12人，竖笛队有多少人？
<gadget id="calculator">21 * 3</gadget>
<output>63</output>

<gadget id="calculator">63 + 12</gadget>
<output>75</output>

<result>75</result>