Two ships, A and B, depart from Shanghai for Qingdao at the same time. After 18 hours, ship A landed 36 kilometers behind ship B. Ship A travels 32.5 kilometers per hour, how many kilometers per hour does boat B travel?
甲、乙两艘轮船同时从上海出发开往青岛．经过18小时后，甲船落在乙船后面36千米．甲船每小时行32.5千米，乙船每小时行多少千米？
<gadget id="calculator">36 / 18</gadget>
<output>2</output>

<gadget id="calculator">2 + 32.5</gadget>
<output>34.5</output>

<result>34.5</result>