Build a 4 km long road and plan to finish it in 10 days. According to this calculation, how much is the length of the complete repair in 5 days?
修一条4千米长的路，计划10天修完．照这样计算，5天修完全长的多少
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 5</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>