On the path around the park lake, put a garbage can every 8 meters, a total of 20, how many meters is the total length of this path?
环绕公园湖的小路上，每隔8米放一个垃圾筒，共放了20个，这条小路全长多少米．
<gadget id="calculator">8 * 20</gadget>
<output>160</output>

<result>160</result>