After the price reduction (1/10) of a DVD player is 855 yuan, what is the original price?
一台DVD机降价(1/10)后是855元，原价是多少元．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">855 / (9/10)</gadget>
<output>950</output>

<result>950</result>