A car travels from A to B at a speed of 66 km/h and takes 4 hours. It took 1 hour less to return, what was the speed of the car when it returned?
汽车从甲地开往乙地，去时的速度是66千米/时，共用了4小时．返回时少用了1小时，汽车返回时的速度是多少？
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">66 * (4/3)</gadget>
<output>88</output>

<result>88</result>