The cost of a pair of leather shoes is 40 yuan, the ex-factory price is 25% higher than the cost price, and 37.5% lower than the sales price. What is the selling price of these shoes.
一双皮鞋的成本是40元，出厂价比成本价高25%，比销售价低37.5%．这双皮鞋的销售价是多少．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">1 - 0.375</gadget>
<output>0.625</output>

<gadget id="calculator">(5/4) / 0.625</gadget>
<output>2</output>

<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<result>80</result>