The school bought 12 footballs and 12 basketballs, and paid a total of 1140 yuan. Each football is 40 yuan. How much is each basketball?
学校买来足球和篮球各12个，一共付出1140元，足球每个40元，篮球每个多少元？
<gadget id="calculator">40 * 12</gadget>
<output>480</output>

<gadget id="calculator">1_140 - 480</gadget>
<output>660</output>

<gadget id="calculator">660 / 12</gadget>
<output>55</output>

<result>55</result>