A car departs from A at 10 am and arrives at B at 3 pm. If the car travels 50 kilometers per hour, how many kilometers is the distance from A to B?
一辆汽车上午10时从甲地出发，下午3时到达乙地，如果汽车每小时行50千米，甲地到乙地的路程是多少千米．
<gadget id="calculator">15 - 10</gadget>
<output>5</output>

<gadget id="calculator">50 * 5</gadget>
<output>250</output>

<result>250</result>