An engineering team installed 300 meters of water pipes in the first 5 days. According to this speed, the installation can be completed in 20 days. How long is this water pipe in total?
某工程队安装水管，前5天安装了300米，照这样的速度，再安装20天就可完工，这条水管共长多少米？
<gadget id="calculator">300 / 5</gadget>
<output>60</output>

<gadget id="calculator">60 * 5</gadget>
<output>300</output>

<gadget id="calculator">60 * 20</gadget>
<output>1_200</output>

<gadget id="calculator">300 + 1_200</gadget>
<output>1_500</output>

<result>1_500</result>