A certain brand sold 15,000 cars nationwide in February, an increase of 25% over the previous month. How many thousands of cars were sold in January?
某品牌汽车二月份全国销售汽车1.5万辆，比上月增长二成五，一月份销售汽车多少万辆？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1.5 / (5/4)</gadget>
<output>1.2</output>

<result>1.2</result>