It takes 26 hours for a ship to sail back and forth between two docks A and B. When going, it travels 32 kilometers per hour with the current; when it returns, it travels 20 kilometers per hour against the current. How many hours will it take to return?
一艘轮船在甲、乙两个码头之间航行一个来回需要26小时，去时顺流，每小时行32千米；返回时逆流，每小时行20千米．返回时需要几小时？
<gadget id="calculator">32 * 26</gadget>
<output>832</output>

<gadget id="calculator">20 + 32</gadget>
<output>52</output>

<gadget id="calculator">832 / 52</gadget>
<output>16</output>

<result>16</result>