Two high-speed bullet trains A and B set off from Shanghai (Hongqiao) and Beijing (South), which are 1320 kilometers apart, at the same time and travel towards each other. On the way, high-speed train A was delayed by 0.1 hour for getting on and off passengers. As a result, high-speed train B met high-speed train A 2.6 hours later. It is known that train B runs an average of 250 kilometers per hour, how many kilometers per hour does train A travel on average?
甲、乙两列高速动车分别从相距1320千米的上海(虹桥)和北京(南)两地同时出发，相向而行．途中甲列高速动车由于上下客耽误了0.1小时，结果乙列高速动车2.6小时后与甲列高速动车在途中相遇．已知乙列高速动车平均每小时行250千米，甲列高速动车平均每小时行多少千米？
<gadget id="calculator">250 * 2.6</gadget>
<output>650</output>

<gadget id="calculator">1_320 - 650</gadget>
<output>670</output>

<gadget id="calculator">2.6 - 0.1</gadget>
<output>2.5</output>

<gadget id="calculator">670 / 2.5</gadget>
<output>268</output>

<result>268</result>