There are 17 male students and 18 female students in the chorus team of the Children's Palace. The number of dance teams is twice that of the chorus team. How many people are there in the dance team?
少年宫合唱队有男同学17人，女同学18人，舞蹈队的人数是合唱队的2倍，舞蹈队有多少人？
<gadget id="calculator">17 + 18</gadget>
<output>35</output>

<gadget id="calculator">35 * 2</gadget>
<output>70</output>

<result>70</result>