There are 48 dance teams and 27 musical instruments in the Children's Palace. The number of chorus teams is three times the total number of dance teams and musical instruments. How many people are there in the chorus?
少年宫的舞蹈队有48人，乐器队有27人，合唱队的人数是舞蹈队和乐器队的总数3倍．合唱队有多少人？
<gadget id="calculator">48 + 27</gadget>
<output>75</output>

<gadget id="calculator">75 * 3</gadget>
<output>225</output>

<result>225</result>