The length of the waterway between the two docks of A and B is 272 kilometers. It takes 8 hours for a cargo ship to travel downstream and 16 hours to travel upstream. How many hours will it take for a piece of wood to travel downstream from Pier A to Pier B?
甲乙两个码头间的水路长272千米．一艘货船顺流而下需要8小时，逆流而上需要16小时．如果一根木头从甲码头顺流而下到乙码头，需要多少小时．
<gadget id="calculator">272 / 8</gadget>
<output>34</output>

<gadget id="calculator">272 / 16</gadget>
<output>17</output>

<gadget id="calculator">34 - 17</gadget>
<output>17</output>

<gadget id="calculator">17 / 2</gadget>
<output>17/2 = around 8.5</output>

<gadget id="calculator">272 / (17/2)</gadget>
<output>32</output>

<result>32</result>