The road construction team repaired a concrete road, 40% of the road was repaired in the first 6 days, and half of the road can be repaired after another 60 meters. How long is this concrete road in meters?
修路队修一条水泥路，前6天修了这条路的40%，再修60米就能修完这条路的一半．这条水泥路全长多少米？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/2) - (2/5)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">60 / (1/10)</gadget>
<output>600</output>

<result>600</result>