The store sold 27 pairs of leather shoes on the first day, and 36 pairs on the second day, earning 765 yuan more on the second day than on the first day. How much is each pair of shoes?
商店第一天卖出皮鞋27双，第二天卖出36双，第二天比第一天多收入765元．每双皮鞋多少钱？
<gadget id="calculator">36 - 27</gadget>
<output>9</output>

<gadget id="calculator">765 / 9</gadget>
<output>85</output>

<result>85</result>