In the school interest group, the ratio of the number of people in the technology group to the painting group is 3:2. Later, the number of people in the technology group increased by 40. At this time, the number of people in the painting group is 50% of the number of people in the technology group. How many people are there in the painting group?
学校兴趣小组中，科技组与绘画组人数比是3：2，后来科技组又增加了40人，这时绘画组人数是科技组人数的50%，绘画组有多少人？
<gadget id="calculator">2 / 1</gadget>
<output>2</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">2 - (3/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">40 / (1/2)</gadget>
<output>80</output>

<result>80</result>