A certain engineering team built a railway. It built 1240 meters in September and 1000 meters in August. This railway team was built more in September than in August (1/20). How many meters is this railway?
某工程队修建一条铁路，九月份修了1240米，八月份修了1000米，九月份比八月份多修了这条铁路队(1/20)，这条铁路多少米？
<gadget id="calculator">1_240 - 1_000</gadget>
<output>240</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">240 / (1/20)</gadget>
<output>4_800</output>

<result>4_800</result>