Mom bought a pair of trousers, and the price of these trousers after a 20% discount is 60 yuan. How much is its original price?
妈妈买了一条裤子，这条裤子打八折后的售价是60元．它的原价是多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">60 / (4/5)</gadget>
<output>75</output>

<result>75</result>