car travels 60 kilometers per hour from A to B, and it takes 8 hours to arrive. In fact, it has traveled 160 kilometers in 2 hours. According to this calculation, how many hours will it take to complete the journey? (Use positive and negative ratios to solve)
汽车从A到B地，每小时行60千米，需8小时到达，实际上2小时已行160千米，照这样计算，行完全程共需多少小时？(用正、反两种比例解)
<gadget id="calculator">60 * 8</gadget>
<output>480</output>

<gadget id="calculator">480 * 2</gadget>
<output>960</output>

<gadget id="calculator">960 / 160</gadget>
<output>6</output>

<result>6</result>