A truck travels 40km per hour, a bus travels 60km per hour, and the distance between A and B is 360km; the two vehicles drive from A to B at the same time, and the bus returns to A immediately after a half-hour rest. The car meets.
货车每小时行40km，客车每小时行60km，甲乙两地相距360km；两车同时从甲地开往乙地，客车到乙地后休息半小时立即返回甲地，从甲地出发后多少小时两车相遇．
<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>