bus departs from A to B, travels 240 kilometers in 3 hours in the morning, and reaches B in the afternoon at the same speed for 160 kilometers. How many hours did the bus travel from point A to point B?
一辆大客车从A地出发去B地，上午3个小时行驶了240千米，下午用同样的速度行驶160千米到达B地．这辆大客车从A地到B地共行了多少小时？
<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<gadget id="calculator">160 / 80</gadget>
<output>2</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<result>5</result>