A car travels from A to B in 6 hours, but actually arrives in 5 hours. By how many percent is the actual speed faster than the planned speed?
一辆汽车从甲地到乙地计划用6小时，实际5小时就到达了．实际速度比计划速度快百分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/30) / (1/6)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>