A 30% discount for a teacup is 14 yuan. What is the original price of this teacup?
一个茶杯打七折销售是14元，这个茶杯的原价是多少元．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">14 / (7/10)</gadget>
<output>20</output>

<result>20</result>