The price of a tape recorder is 450 yuan, which is three times the price of a walkman. How much is the price of a walkman?
一台收录机的售价是450元，是一台随声听售价的3倍，一台随身听售价多少元？
<gadget id="calculator">450 / 3</gadget>
<output>150</output>

<result>150</result>