Mr. Zhang bought a house at 95% of the listed price. After a period of time, he sold the house at a price exceeding 30% of the original listed price. In this way, he made a total profit of 105,000 yuan. How much is the original price of this house.
张先生以标价的95%买下一套房子，经过一段时间后，又以超出原标价30%的价格把房子卖出．这样他一共获利10.5万元．这套房子原标价多少万元．
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">(3/10) - (19/20)</gadget>
<output>-13/20 = around -0.65</output>

<gadget id="calculator">1 + (-13/20)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">10.5 / (7/20)</gadget>
<output>30</output>

<result>30</result>