There are 3 more boys than girls in Class 51, and 12.5% fewer girls than boys. How many people are there in Class 51?
五一班男生比女生多3人，女生比男生少12.5%，五一班共有多少人？
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">3 / 0.125</gadget>
<output>24</output>

<result>24</result>