The distance between the east and west towns is 240 kilometers. A passenger car departs from Dongzhen to West Town at 8:00 a.m., and a truck departs from West Town to Dongzhen at 9:00 a.m., and at 12:00 noon, the two vehicles happen to pass between the two towns. meet at the midpoint of . If the two cars start from the opposite direction at 8:00 a.m. at the same speed, how many kilometers will the distance between the two cars be at 10:00 a.m.?
东西两镇相距240千米，一辆客车上午8时出发从东镇开往西镇，一辆货车在上午9时从西镇开往东镇，到正午12点，两车恰好在两镇间的中点相遇．如果两车都从上午8点由两地相向开出，速度不变，至上午10时，两车还相距多少千米？
<gadget id="calculator">240 / 2</gadget>
<output>120</output>

<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<gadget id="calculator">12 - 9</gadget>
<output>3</output>

<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">30 + 40</gadget>
<output>70</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<gadget id="calculator">240 - 140</gadget>
<output>100</output>

<result>100</result>