A "hero" pen, the original price is 30 yuan a piece, and during the New Year's promotion, you can buy 1 more for the original price of 5. How much is the average price of each pen now?
一种"英雄"钢笔，原价30元一支，新年期间优惠促销，原来买5支的钱现在可以多买1支，现在每只钢笔均价多少元？
<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">30 * (5/6)</gadget>
<output>25</output>

<result>25</result>