A car is planned to travel 350 kilometers in 5 hours, but it actually takes 4 hours to complete the whole journey. How many kilometers did you travel more than planned per hour?
一辆汽车计划用5小时行350千米，实际4小时就行完了全程．实际每小时比计划多行多少千米？
<gadget id="calculator">350 / 4</gadget>
<output>175/2 = around 87.5</output>

<gadget id="calculator">350 / 5</gadget>
<output>70</output>

<gadget id="calculator">(175/2) - 70</gadget>
<output>35/2 = around 17.5</output>

<result>35/2 = around 17.5</result>