The distance between A and B is 960 kilometers. One car travels from A to B at 45 kilometers per hour; the other car travels from B to A at 35 kilometers per hour. How many kilometers are the distance between the two cars after driving opposite each other for 3 hours at the same time?
甲、乙两地相距960千米，一辆汽车从甲地开往乙地，每小时行45千米；另一辆汽车从乙地开往甲地，每小时行35千米，两车从两地同时相对开出3小时后，两车相距多少千米？
<gadget id="calculator">45 + 35</gadget>
<output>80</output>

<gadget id="calculator">80 * 3</gadget>
<output>240</output>

<gadget id="calculator">960 - 240</gadget>
<output>720</output>

<result>720</result>