If a computer book is priced at 120 yuan after a 40% discount, what is the original price?
一本电脑书打了六折后的售价为120元，则原价为多少元．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 / (3/5)</gadget>
<output>200</output>

<result>200</result>