The art class has 5 fewer students than the English class, and the English class has 20% more students than the art class. How many students are there in the English class?
美术班比英语班少5人，英语班比美术班多20%，英语班有多少人
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">5 / (1/5)</gadget>
<output>25</output>

<gadget id="calculator">25 + 5</gadget>
<output>30</output>

<result>30</result>