A 30-meter-long straight road is placed with flower pots from the beginning to the end, and one pot is placed every 2 meters. How many potted flowers should be placed in total.
一条30米长的直道一边从头到尾放花盆，每隔2米放一盆，一共要放多少盆花．
<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">15 + 1</gadget>
<output>16</output>

<result>16</result>