It takes 1.5 hours for a car to drive from place A to place B. When returning from place B to place A, it speeds up 10 kilometers per hour, which is 1 hour less than when going there. How many kilometers are there between places A and B?
一辆汽车从甲地开往乙地用去1.5小时，由乙地返甲地时，每小时加快10千米，比去时少用了1小时，甲乙两地相距多少千米？
<gadget id="calculator">10 * 1.5</gadget>
<output>15</output>

<gadget id="calculator">15 - 10</gadget>
<output>5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">1 - 1</gadget>
<output>0</output>

<gadget id="calculator">(2/3) + 0</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">5 / (2/3)</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>