The price of a mobile phone is 600 yuan with a 25% discount. What is the original price of this mobile phone?
一部手机按七五折的价格是600元，这部手机的原价是多少元？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">600 / (3/4)</gadget>
<output>800</output>

<result>800</result>