The journey from A to B is divided into three sections: uphill, flat, and downhill. The ratio of each section is 2:3:5. The ratio of the time Xiaoliang takes to walk these three sections is 6:5: 4. It is known that Xiaoliang's speed when walking on a flat road is 4.5 kilometers per hour, and it took him 5 hours to walk from point A to point B. Question: How many miles is the distance between A and B?
从甲地到乙地的路程分为上坡、平路、下坡三段，各段路程之比是2：3：5，小亮走这三段路所用的时间之比是6：5：4．已知小亮走平路时的速度为每小时4.5千米，他从甲地走到乙地共用了5小时．问：甲、乙两地相距多少千米？
<gadget id="calculator">6 + 5 + 4</gadget>
<output>15</output>

<gadget id="calculator">5 / 15</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 + 3 + 5</gadget>
<output>10</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(1/3) / (3/10)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">4.5 * 5 * (10/9)</gadget>
<output>25</output>

<result>25</result>