The distance between A and B is 30km. Cars A and B are traveling towards each other from A and B at the same time. The speed ratio of cars A and B is 2:3. After meeting, both cars increase their speed, and now the speed ratio of the two cars is 5:6. When car B arrives at point A, how far is car A from point B?
A、B两地相距30km，甲乙两车分别从A、B两地同时相向而行，出发时甲乙两车的速度比是2：3．相遇后，两车都提高了速度，现在两车的速度比是5：6．当乙车到达A地时，甲车离B地还有多少千米？
<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">30 * (2/5)</gadget>
<output>12</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(5/6) * 30 * (2/5)</gadget>
<output>10</output>

<gadget id="calculator">30 - 12 - 10</gadget>
<output>8</output>

<result>8</result>