In the sixth grade of Xingfu Primary School, three interest groups have been established. The football group accounts for 20% of the total number of participants. The ratio of the number of participants in the radio group and the meteorological group is 3:2. It is known that there are 24 people participating in the meteorological group. Please join How many people are in the interest group?
幸福小学六年级成立了三个兴趣小组，足球组的人数占参加总人数的20%，参加无线电组和气象组的人数之比是3：2，已知参加气象组的有24人，求参加兴趣小组的共多少人．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">24 / (2/5) / (4/5)</gadget>
<output>75</output>

<result>75</result>