There are 40 people in the art group of the school, and the number of chorus group is twice that of the art group. How many people are there in the art group and chorus group?
学校美术组有40人，合唱组的人数是美术组的2倍．美术组与合唱组一共有多少人？
<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<gadget id="calculator">40 + 80</gadget>
<output>120</output>

<result>120</result>