A luxury bus travels 80 kilometers per hour from Nanchang to Shanghai and arrives in 6 hours. It takes 1 hour less to return. What is the speed when returning?
一辆豪华客车从南昌到上海每小时行80千米，6小时到达，返回时少用1小时，返回时的速度是多少？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">6 / 5</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">80 * (6/5)</gadget>
<output>96</output>

<result>96</result>