The school took a sum of money to buy a set of sportswear for each athlete of the sports team. If you buy 30 sets, you will have 120 yuan left, and if you buy 32 sets, you will have 20 yuan left. How much is each set of sportswear? (The price of each set of sportswear is the same)
学校拿了一笔钱给体育队的运动员们每人买一套运动服，如果买30套，还剩120元，如果买32套，还剩20元，每套运动服多少钱？(每套运动服价格一样)
<gadget id="calculator">120 - 20</gadget>
<output>100</output>

<gadget id="calculator">32 - 30</gadget>
<output>2</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<result>50</result>