A car drives from city A to city B at 53 kilometers per hour. After driving for 3 hours, it is still 15 kilometers away from city B. What is the length of the road between A and B in kilometers?
一辆汽车从甲城开往乙城，每时行53千米，开出3小时后，离乙城还有15千米．甲乙两城之间的公路长是多少千米？
<gadget id="calculator">53 * 3</gadget>
<output>159</output>

<gadget id="calculator">159 + 15</gadget>
<output>174</output>

<result>174</result>