A certain unit of the People's Liberation Army conducts camping training. The original plan was to march 35 kilometers a day and complete the journey in 15 days. Actually finished walking 1 day earlier, how many kilometers per day on average?
解放军某部进行野营训练．原计划每天行军35千米，15天走完全程．实际提前1天走完，平均每天走多少千米？
<gadget id="calculator">15 - 1</gadget>
<output>14</output>

<gadget id="calculator">15 / 14</gadget>
<output>15/14 = around 1.071429</output>

<gadget id="calculator">35 * (15/14)</gadget>
<output>75/2 = around 37.5</output>

<result>75/2 = around 37.5</result>