River A is a tributary of River B. The speed of River A is 3 kilometers per hour, and the speed of River B is 2 kilometers per hour. A boat sails along River A for 8 hours and travels 152 kilometers to reach River B. , the boat has to sail 112 kilometers against the current in the Yi River, how many hours does this boat have to sail in the Yi River?
甲河是乙河的支流，甲河的水速为每小时3千米，乙河的水速为每小时2千米，一条船沿甲河顺水航行8小时，行了152千米到达乙河，在乙河还要逆水航行112千米，求这条船在乙河还要航行几小时？
<gadget id="calculator">152 / 8</gadget>
<output>19</output>

<gadget id="calculator">19 - 3 - 2</gadget>
<output>14</output>

<gadget id="calculator">112 / 14</gadget>
<output>8</output>

<result>8</result>