A certain pen in the store is sold at a fixed price, and the total price is 288 yuan. If it is sold at 20% off the price, 6 more can be sold for 288 yuan. How much is the price of each pen.
商店的某种钢笔按定价卖，总共卖得288元．若按定价打八折卖，288元可以多卖出6支．这种钢笔每支定价多少元．
<gadget id="calculator">576 / 48</gadget>
<output>12</output>

<result>12</result>