A car starts from point A, goes to point B, and arrives at point C between the two places after 1.8 hours. It took another 3.5 hours to reach B from C at the same speed. It is known that the distance between A and C is 136 kilometers less than the distance between C and B. How many kilometers does this car travel per hour?
一辆汽车从A地出发，开往B地，1.8小时后，到达两地间的C地．从C地又以同样的速度行了3.5小时到达B地．已知A、C两地间的路程比C、B两地间的路程少136千米．这辆汽车每小时行多少千米？
<gadget id="calculator">3.5 - 1.8</gadget>
<output>1.7</output>

<gadget id="calculator">136 / 1.7</gadget>
<output>80</output>

<result>80</result>