A car has driven 1/3 of the way from A to B, and there is still 25 kilometers away from the midpoint. How many kilometers are there between A and B?
一辆汽车从甲地开往乙地，已经行了全程的(1/3)，离中点还有25千米，甲乙两地相距多少千米？
<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>1/6 = around 0.166667</output>

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

<result>150</result>