On one side of a 30-meter-long straight road, pots of flowers are placed every 2 meters, and both ends are placed. How many pots should be placed in total?
一条30米长的直道一边，每隔2米放了一盆花，两端都放，一共要放多少盆？
<gadget id="calculator">30 / 2</gadget>
<output>15</output>

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

<result>16</result>