On a map with a scale of 1:20000000, the length of the railway between A and B is 6 cm. Two trains depart from places A and B at the same time. It is known that the train from place A travels 125 kilometers per hour, and the train from place B travels 115 kilometers per hour. After a few hours, two trains Can we meet?
在比例尺是1：20000000的地图上量得甲、乙两地间的铁路长6厘米．两列火车分别从甲、乙两地同时相对开出，已知从甲地开出的车每小时行125千米，从乙地开出的车每小时行115千米，几小时后两车能相遇？
<gadget id="calculator">1 / 20_000_000</gadget>
<output>1/20_000_000 = around 0</output>

<gadget id="calculator">1_000 * 100</gadget>
<output>100_000</output>

<gadget id="calculator">6 / (1/20_000_000) / 100_000</gadget>
<output>1_200</output>

<gadget id="calculator">125 + 115</gadget>
<output>240</output>

<gadget id="calculator">1_200 / 240</gadget>
<output>5</output>

<result>5</result>