A car drives from city A to city B at a speed of 50.8 km/h, and it will be 90 kilometers away from city B in 5 hours. How many miles is the distance between A and B?
一辆汽车按50.8千米/时速度从甲城开往乙城，5小时后距乙城还有90千米．甲、乙两城相距多少千米？
<gadget id="calculator">50.8 * 5</gadget>
<output>254</output>

<gadget id="calculator">254 + 90</gadget>
<output>344</output>

<result>344</result>