Mom bought a set of cosmetics for 200 yuan, and the salesperson told her that it was a 50% discount sale. How much was the original price of this set of cosmetics?
妈妈花了200元买了一套化妆品，售货员告诉妈妈这是打五折销售，这套化妆品原价多少元钱？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">200 / (1/2)</gadget>
<output>400</output>

<result>400</result>