A car plans to travel 40 kilometers per hour, and it takes 7.5 hours to travel from point A to point B; it actually travels 180 kilometers in 3 hours, how many hours will it take to complete the journey?
一辆汽车计划每小时行40千米，从甲地到乙地需要7.5小时；实际3小时行了180千米，照这样行完全程要几小时？
<gadget id="calculator">40 * 7.5</gadget>
<output>300</output>

<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<gadget id="calculator">300 / 60</gadget>
<output>5</output>

<result>5</result>