A store sells 18 pairs of shoes in the morning and 23 pairs in the afternoon. The specific income in the afternoon is 425 yuan. How much is each pair of shoes?
某商店上午卖出鞋子18双，下午又卖出23双，下午比收入425元，每双鞋子多少元钱？
<gadget id="calculator">23 - 18</gadget>
<output>5</output>

<gadget id="calculator">425 / 5</gadget>
<output>85</output>

<result>85</result>