There are 28 people in the art group of the Children's Palace, and the number of people in the calligraphy group is three times that of the art group. How many people are in the calligraphy group?
少年宫美术组有28人，书法组的人数是美术组的3倍．书法组的人数是多少人？
<gadget id="calculator">28 * 3</gadget>
<output>84</output>

<result>84</result>