On the 1:4800000 map of Guizhou, the measured distance from Bijie to Guiyang is 5 cm. How many hours does it take for a car with a speed of 60 kilometers per hour to travel from Guiyang to Bijie?
在1：4800000贵州地图上，测得毕节至贵阳的距离是5厘米，一辆时速60千米的轿车从贵阳到毕节，需要行驶多少小时．
<gadget id="calculator">1 / 4_800_000</gadget>
<output>1/4_800_000 = around 0</output>

<gadget id="calculator">5 / (1/4_800_000) / 100_000 / 60</gadget>
<output>4</output>

<result>4</result>