For a section of highway, a car can complete the journey in 2 hours. Car B can complete the journey in 3 hours. Cars A and B start from both ends of the road at the same time and drive opposite each other for 1 hour. The distance between the two cars is 25 kilometers. How many kilometers is the total length of this road?
一段公路，甲车2小时可行完全程．乙车3小时可行完全程，甲乙两车从公路的两端同时出发相对开出1小时后，两车相距25千米，这段公路全长多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">(1/2) + (1/3)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">25 / (1/6)</gadget>
<output>150</output>

<result>150</result>