Students line up on the playground to do exercises, if every two adjacent students are separated by 1 meter. On a road with a total length of 15 meters, how many people can be lined up in a line at most?
同学们到操场上排队做操，如果每相邻两个同学之间相隔1米．在全长15米的路上，一列队伍最多可以排多少人．
<gadget id="calculator">15 / 1</gadget>
<output>15</output>

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

<result>16</result>