To install water pipes, 225 meters will be installed in the first 3 days. According to this calculation, it will take 15 days to complete the task. How many meters are the water pipes installed? (Solve with ratio)
安装水管，前3天安装225米，照这样计算，还要安装15天才能完成任务．安装的这批水管共长多少米？(用比例解)
<gadget id="calculator">225 / 3</gadget>
<output>75</output>

<gadget id="calculator">75 * 3</gadget>
<output>225</output>

<gadget id="calculator">75 * 15</gadget>
<output>1_125</output>

<gadget id="calculator">225 + 1_125</gadget>
<output>1_350</output>

<result>1_350</result>