There are 32 girls in the art group of Chaoyang Primary School, and the number of girls is 80% of that of boys. How many boys are there in the art group?
朝阳小学美术组有女32人，女生人数是男生的80%．美术组有男生多少人？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">32 / (4/5)</gadget>
<output>40</output>

<result>40</result>