The teacher bought 6 pairs of table tennis rackets for 100 yuan, and got back 40 yuan. How much is each pair of table tennis rackets?
老师用100元买了6副乒乓球拍，找回了40元，每副乒乓球拍多少元？
<gadget id="calculator">100 - 40</gadget>
<output>60</output>

<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<result>10</result>