Changqing Lake Elementary School built a plastic runway, the actual cost was 270,000 yuan, which was originally planned (9/10). How much was the original plan?
常青湖小学修建一条塑胶跑道，实际造价27万元，是原计划的(9/10)．原计划造价多少万元？
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">27 / (9/10)</gadget>
<output>30</output>

<result>30</result>