The total length of the Shanghai-Nanjing Expressway is about 275 kilometers. Two cars departed from Shanghai and Nanjing at the same time and met after 1.1 hours. A car from Shanghai travels an average of 120 kilometers per hour. How many kilometers per hour does the car from Nanjing travel on average?
沪宁高速公路全长约275千米，两辆汽车分别从上海和南京同时相对开出，经过1.1小时相遇．从上海开出的汽车，平均每小时行120千米．从南京开出的汽车平均每小时行多少千米？
<gadget id="calculator">275 / 1.1</gadget>
<output>250</output>

<gadget id="calculator">250 - 120</gadget>
<output>130</output>

<result>130</result>