It takes 6 hours for a car to drive from point A to point B, which is faster (1/2) than the speed of a motorcycle from point B to point A. Now the two cars drive from the two places at the same time. After 3 hours, The distance between the two cars is 75 kilometers, how many kilometers are the distance between the two places?
一辆汽车从甲地开往乙地用6小时，比一辆摩托车从乙地开往甲地的速度快(1/2)，现在两车同时从两地相对开出，经过3小时，两车还相距75干米，两地相距多少千米？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * 3</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(1/6) / (3/2)</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/9) * 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/2) - (1/3)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">75 / (1/6)</gadget>
<output>450</output>

<result>450</result>