The mall sold 7 boxes of pens yesterday, 8 pens in each box, with a total income of 560 yuan. How much is each pen?
商场昨天卖出7盒钢笔，每盒8枝，一共收入560元，每枝钢笔多少元？
<gadget id="calculator">560 / 7 / 8</gadget>
<output>10</output>

<result>10</result>