A truck drives from Guangyuan to Chengdu. The total distance from Guangyuan to Chengdu is 224 kilometers. This car travels 140 kilometers in 2.5 hours. At this speed, how many hours will it take for the truck to arrive?
一辆货车从广元开往成都，广元到成都总路程有224千米，这辆车2.5小时行了140千米，照这样的速度，货车还要行多少小时才能到达？
<gadget id="calculator">224 - 140</gadget>
<output>84</output>

<gadget id="calculator">140 / 2.5</gadget>
<output>56</output>

<gadget id="calculator">84 / 56</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>