5 footballs cost 100 yuan, 3 basketballs cost 69 yuan, which one is more expensive than a football or a basketball? How expensive is it?
5个足球100元，3个篮球69元，一个足球与一个篮球比，哪个贵？贵多少？
<gadget id="calculator">69 / 3</gadget>
<output>23</output>

<gadget id="calculator">100 / 5</gadget>
<output>20</output>

<gadget id="calculator">23 - 20</gadget>
<output>3</output>

<result>3</result>