The school bought back a batch of sporting goods, 18 pairs of badminton rackets cost 460.8 yuan, and 25 pairs of table tennis rackets cost 462.5 yuan. How much is each pair of badminton rackets more expensive than each pair of table tennis rackets?
学校买回一批体育用品，18副羽毛球拍用去460.8元，25副乒乓球拍用去462.5元，每副羽毛球拍比每副乒乓球拍贵多少元？
<gadget id="calculator">460.8 / 18</gadget>
<output>25.6</output>

<gadget id="calculator">462.5 / 25</gadget>
<output>18.5</output>

<gadget id="calculator">25.6 - 18.5</gadget>
<output>7.1</output>

<result>7.1</result>