The truck is 40km per hour, the bus is 60km per hour, and the distance between A and B is 360km. They drive from A to B in the same direction at the same time. The bus returns to A immediately after resting for half an hour. Hour two cars meet?
货车每小时40km，客车每小时60km，A、B两地相距360km，同时同向从甲地开往乙地，客车到乙地休息了半小时后立即返回甲地，问从甲地出发后几小时两车相遇？
<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<gadget id="calculator">6 + 0.5</gadget>
<output>6.5</output>

<gadget id="calculator">40 * 6.5</gadget>
<output>260</output>

<gadget id="calculator">360 - 260</gadget>
<output>100</output>

<gadget id="calculator">60 + 40</gadget>
<output>100</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">6.5 + 1</gadget>
<output>7.5</output>

<result>7.5</result>