160 square bricks with a side length of 0.5 meters are used to pave a road with a width of 2 meters. How many meters can be paved?
用边长是0.5米的方砖160块，铺成2米宽的路，能铺多少米．
<gadget id="calculator">160 / 2</gadget>
<output>80</output>

<gadget id="calculator">0.5 * 0.5 * 80</gadget>
<output>20</output>

<result>20</result>