The total length of the road from City A to City B is 280 kilometers. A small car drove from City A to City B and traveled 160 kilometers in the first 2 hours. At this speed, how many hours will it take to reach City B?
从甲城到乙城公路全长280千米，一辆小车从甲城开往乙城，前2个小时走了160千米．照这样的速度，还要多少小时能够到达乙城？
<gadget id="calculator">280 - 160</gadget>
<output>120</output>

<gadget id="calculator">160 / 2</gadget>
<output>80</output>

<gadget id="calculator">120 / 80</gadget>
<output>3/2 = around 1.5</output>

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