The number of people participating in the computer class in Xinxing Primary School is the art class (2/3), and the number of people in the art class is the chorus team (2/5). It is known that there are 20 people participating in the computer class. How many people are participating in the chorus team?
新星小学参加计算机班的人数是美术班的(2/3)，美术班人数是合唱队的(2/5)，已知参加计算机班的有20人，参加合唱队的有多少人？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">20 / (2/3) / (2/5)</gadget>
<output>75</output>

<result>75</result>