A passenger ship departs from Port A at 8:00 AM and arrives at Port B at 3:00 PM. The passenger ship travels 25 kilometers per hour. How many kilometers is the waterway between Ports A and B?
一艘客船上午8时从甲港出发，下午3时到达乙港，客船每小时行25千米，甲、乙两港之间水路长多少千米？
<gadget id="calculator">15 - 8</gadget>
<output>7</output>

<gadget id="calculator">25 * 7</gadget>
<output>175</output>

<result>175</result>