On a map with a scale of 1:3000000, the distance between the two places is measured to be 20cm. Cars A and B drive opposite each other from the two places and meet after 6 hours. It is known that the speed ratio of cars A and B is 2:3. Find A the speed of the car.
在一幅比例尺为1：3000000的地图上，量得两地距离为20cm，甲乙两车从两地相对开出，6小时后相遇，已知甲乙两车的速度比是2：3，求甲车的速度．
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">20 / (1/3_000_000) / 100_000 / 6</gadget>
<output>100</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">100 * (2/5)</gadget>
<output>40</output>

<result>40</result>