Ao Zebra went from QQ Village to IQ Village and returned the same way. It is known that the distance between the two villages is 4800 meters, and the Austrian zebra walks 120 meters per minute when going, and 80 meters per minute when returning. Then, the average speed of the Austrian zebra going back and forth is how many meters per minute.
奥斑马从QQ村前往IQ村并原路返回．已知两村的距离是4800米，且奥斑马去时每分钟走120米，回时每分钟走80米．那么，奥斑马往返的平均速度是每分钟走多少米．
<gadget id="calculator">4_800 / 120</gadget>
<output>40</output>

<gadget id="calculator">4_800 / 80</gadget>
<output>60</output>

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

<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">4_800 * (1/50)</gadget>
<output>96</output>

<result>96</result>