To build a canal, 240 meters have been built in 5 days. At this speed, the rest will be completed in 9 days. How many meters is this canal?
修一条水渠，5天已经修了240米，照这样的速度，剩下的还要9天修完．这条水渠一共多少米？
<gadget id="calculator">240 / 5</gadget>
<output>48</output>

<gadget id="calculator">48 * 5</gadget>
<output>240</output>

<gadget id="calculator">48 * 9</gadget>
<output>432</output>

<gadget id="calculator">240 + 432</gadget>
<output>672</output>

<result>672</result>