The stationery store sells 40 pens in the morning and 76 of the same pens in the afternoon. The income in the afternoon is 288 yuan more than in the morning. How much is each pen?
文具店上午卖出钢笔40枝，下午卖出同样的钢笔76枝，下午比上午多收入288元，每枝钢笔多少元？
<gadget id="calculator">76 - 40</gadget>
<output>36</output>

<gadget id="calculator">288 / 36</gadget>
<output>8</output>

<result>8</result>