It takes 8 hours for a car to go back and forth between A and B, an average of 98 kilometers per hour. How many kilometers are there between A and B?
一辆汽车往返甲乙两地用了8小时，平均每小时行98千米．甲乙两地相距多少千米？
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">98 * 4</gadget>
<output>392</output>

<result>392</result>