The school bought 8 basketballs and 7 volleyballs for a total of 252.5 yuan. It is known that each volleyball is 7.5 yuan, how much is each basketball?
学校买来8个篮球和7个排球，共用去252.5元．已知每个排球7.5元，每个篮球多少元？
<gadget id="calculator">7.5 * 7</gadget>
<output>52.5</output>

<gadget id="calculator">252.5 - 52.5</gadget>
<output>200</output>

<gadget id="calculator">200 / 8</gadget>
<output>25</output>

<result>25</result>