A truck drives from A to B, and has traveled the entire distance (3/5), and there is still 25 kilometers away from the midpoint. How many kilometers are there between A and B?
一辆货车从甲开往乙地，已行全程的(3/5)，距中点还有25千米，甲、乙两地相距多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) - (1/2)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">25 / (1/10)</gadget>
<output>250</output>

<result>250</result>