To build a road, if you build 120 meters a day, you can finish it in 8 days; if you build 150 meters a day, how many days can you finish it? (Solution by proportional method)
修一条路，如果每天修120米，8天可以修完；如果每天修150米，几天可以修完？(用比例方法解)
<gadget id="calculator">120 * 8</gadget>
<output>960</output>

<gadget id="calculator">960 / 150</gadget>
<output>32/5 = around 6.4</output>

<result>32/5 = around 6.4</result>