The price of a radio is 25% lower this year than last year. The price of each radio is 36 yuan this year. How much was the price last year?
一种收音机每台售价今年比去年降低25%，今年每台售价36元，去年每台售价多少元？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">36 / (3/4)</gadget>
<output>48</output>

<result>48</result>