After a 25% discount on a pair of sports shoes, it is 35 yuan cheaper than the original price. How much is the original price of the sports shoes?
一双运动鞋打七五折后，比原价便宜35元，运动鞋原价是多少元？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">35 / (1/4)</gadget>
<output>140</output>

<result>140</result>