There are 340 people in two groups, A and B, and the number of people in group A is 20 people more than three times the number of people in group B. How many people are there in Group A?
甲，乙两组共有340人，甲组人数比乙组人数的3倍多20人．甲组有多少人？
<gadget id="calculator">340 - 20</gadget>
<output>320</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">320 / 4</gadget>
<output>80</output>

<gadget id="calculator">340 - 80</gadget>
<output>260</output>

<result>260</result>