On a map with a scale of 1:4000000, it is known that the distance on the map between the two cities A and B is 10cm. Cars A and B in the two cities of A and B leave at the same time and drive towards each other. Cars meet, and the speed ratio of cars A and B is 2:3. How many kilometers did A travel when they met?
在一幅比例尺是1：4000000的地图上，已知A、B两城间的图上距离为10cm，A、B两城的甲车、乙车同时开出，相向而行，经过5小时两车相遇，甲、乙两车的速度比是2：3，相遇时甲行了多少千米？
<gadget id="calculator">1 / 4_000_000</gadget>
<output>1/4_000_000 = around 0</output>

<gadget id="calculator">10 / (1/4_000_000) / 100</gadget>
<output>400_000</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) / 1_000</gadget>
<output>1/2_500 = around 0.0004</output>

<gadget id="calculator">400_000 * (1/2_500)</gadget>
<output>160</output>

<result>160</result>