A car transports goods from place A to place B, travels 45 kilometers per hour, and arrives in 16 hours. How many hours will it take to return from point B to point A when traveling 60 kilometers per hour on the way back?
一辆汽车从甲地开往乙地运货，每小时行45千米，16小时到达．返回时每小时行60千米，从乙地回到甲地要用多少小时？
<gadget id="calculator">16 / 60</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">45 * (4/15)</gadget>
<output>12</output>

<result>12</result>