A truck drove from City A to City B and traveled 275 kilometers in the morning. In the afternoon, the remaining distance (5/7) is traveled. At this time, the ratio of the remaining distance to the distance traveled is 1:8. How many kilometers does the train have to travel to reach City B?
一辆货车从甲城开往乙城，上午走了275千米．下午走了余下路程的(5/7)，此时剩余路程与已行路程的比是1：8，火车还要走多少千米才能到达乙城？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">275 * (5/7)</gadget>
<output>1_375/7 = around 196.428571</output>

<gadget id="calculator">275 - (1_375/7)</gadget>
<output>550/7 = around 78.571429</output>

<gadget id="calculator">9 * (5/7)</gadget>
<output>45/7 = around 6.428571</output>

<gadget id="calculator">9 - (45/7) - 1</gadget>
<output>11/7 = around 1.571429</output>

<gadget id="calculator">(550/7) / (11/7)</gadget>
<output>50</output>

<result>50</result>