A car travels from point A to point B. It is planned to travel 40 kilometers per hour, and arrives in 7 hours. It only takes 5 hours. How many kilometers does it actually travel per hour?
一辆汽车从甲地到乙地，计划每小时行40千米，7小时到达，结果只用了5小时，实际每小时要行多少千米？
<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">40 * (7/5)</gadget>
<output>56</output>

<result>56</result>