A train travels 245 kilometers in 5 hours. At this speed, the railway from Chengdu to Beijing is 2058 kilometers long, how many hours will it take?
一列火车5小时行245千米．照这样的速度，从成都到北京的铁路长2058千米，要行多少小时？
<gadget id="calculator">245 / 5</gadget>
<output>49</output>

<gadget id="calculator">2_058 / 49</gadget>
<output>42</output>

<result>42</result>