The distance between A and B is 28km, and there is a stop sign every 4km on average (A site is set, B site is not), how many stop signs are there in the whole journey?
甲、乙两地相距28km，平均每4km设置一个站牌(甲地设，乙地不设)，全程一共有多少个站牌？
<gadget id="calculator">28 / 4</gadget>
<output>7</output>

<result>7</result>