A car travels 60 km per hour from point A to point B, and it takes 4 hours to get there. I actually traveled 100km in the first 2 hours. According to this calculation, how many hours will it take to complete the journey? (answer in two ways)
一辆汽车从甲地到乙地每小时行60km，4小时可到达．实际前2小时行了100km，照这样计算，行完全程一共需多少小时？(用两种方法解答)
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">4 / 50</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">60 * (2/25)</gadget>
<output>24/5 = around 4.8</output>

<result>24/5 = around 4.8</result>