The school sports room bought 5 footballs and 11 basketballs and paid 280 yuan in total. It is known that each football is 15.3 yuan. How much is each basketball?
学校体育室买了5个足球和11个篮球，共付280元钱．已知每个足球15.3元．每个篮球多少元？
<gadget id="calculator">15.3 * 5</gadget>
<output>76.5</output>

<gadget id="calculator">280 - 76.5</gadget>
<output>203.5</output>

<gadget id="calculator">203.5 / 11</gadget>
<output>18.5</output>

<result>18.5</result>