Passenger and freight trains drive from Luxi to Kunming at the same time. It takes 3 hours for the bus to complete the journey, and 4 hours for the truck to complete the journey. After 2 hours, the distance between the two vehicles is 33 kilometers. How many kilometers is the distance between Luxi and Kunming?
客、货两车同时从泸西开往昆明，客车行完全程要3小时，货车行完全程要4小时，经过2小时后两车相距33千米，泸西到昆明相距多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 2</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">33 / (1/6)</gadget>
<output>198</output>

<result>198</result>