A person walks from place A to place B for 0.5 hours, and then takes a car for 4 hours, covering a total distance of 205.6 kilometers. If he walks 6 kilometers per hour, how many kilometers per hour does the car travel?
某人从甲地到乙地，步行0.5小时后，又坐汽车走了4小时，共走了205.6千米．若他步行每小时走6千米，汽车每小时走多少千米？
<gadget id="calculator">6 * 0.5</gadget>
<output>3</output>

<gadget id="calculator">205.6 - 3</gadget>
<output>202.6</output>

<gadget id="calculator">202.6 / 4</gadget>
<output>50.65</output>

<result>50.65</result>