A passenger car travels from place A to place B at 75 kilometers per hour. After driving for 4 hours, it is still 480 kilometers away from place B. How many miles is it from A to B?
一客车从甲地开往乙地，每小时行75千米，行了4小时，离乙地还有480千米．甲地到乙地有多少千米？
<gadget id="calculator">75 * 4</gadget>
<output>300</output>

<gadget id="calculator">300 + 480</gadget>
<output>780</output>

<result>780</result>