How many street lamps are needed to lay street lamps every 50 meters on a 650-meter-long road?
在一段长650米的马路上铺设路灯，每隔50米铺设一盏，一共需要多少盏路灯？
<gadget id="calculator">650 / 50</gadget>
<output>13</output>

<gadget id="calculator">13 + 1</gadget>
<output>14</output>

<result>14</result>