car travels 75 kilometers per hour from point A to point B. It takes 8 hours to reach point B, and it takes only 6 hours to return from point B to point A. How many kilometers per hour does it travel on average when it returns?
一辆轿车从甲地到乙地，去时每小时行75千米，8小时到达乙地，从乙地返回甲地，只用6小时，返回时平均每小时行多少千米？
<gadget id="calculator">8 / 6</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">75 * (4/3)</gadget>
<output>100</output>

<result>100</result>