A car drives from place A to place B. It travels at a speed of 72 kilometers per hour for 4 hours, and travels for 3 hours when it returns. What is the speed of the car when it returns?
一辆汽车从甲地开往乙地，去时以每小时72千米的速度行驶了4小时，返回时行驶了3小时，这辆汽车返回时的速度是多少？
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">72 * (4/3)</gadget>
<output>96</output>

<result>96</result>