The road construction team lays a section of railway. Team A lays 6 kilometers of track every day from south to north, and team B lays 25% more tracks than team A every day from north to south. The two teams started work at the same time and completed it in 16 days. How many kilometers is this railway?
筑路队铺一段铁路，甲队从南向北，每天铺轨6千米，乙队从北向南，每天比甲队多铺25%．两队同时开工，经过16天完成．这段铁路长多少千米？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">6 * (1/4)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">6 + (3/2)</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">6 + (15/2)</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">(27/2) * 16</gadget>
<output>216</output>

<result>216</result>