truck travels 45 kilometers per hour from City A to City B and arrives in 8 hours. Driving 60 kilometers per hour when returning, how many hours will it take to return to Jiacheng?
一辆货车从甲城到乙城，每小时行驶45千米，8小时到达．返回时每小时行驶60千米，需要几小时回到甲城？
<gadget id="calculator">8 / 60</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">45 * (2/15)</gadget>
<output>6</output>

<result>6</result>