When 48 athletes from class 2 of four years come out in the sports meeting, they line up in 4 columns, and the distance between two adjacent people is 1 meter.
运动会上四年2班48名运动员出场时，排成4列纵队，前后相邻两人间隔为1米，每列队伍长多少米．
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 - 1</gadget>
<output>11</output>

<gadget id="calculator">11 * 1</gadget>
<output>11</output>

<result>11</result>