In this community, Uncle Wang went from Luoyang to Kaifeng. He traveled 60 kilometers per hour when he went there. It took him 4 hours, and he spent 3 hours when he came back. How many kilometers per hour did he travel on average when he returned?
这个小区王叔叔从洛阳去开封，去时每小时行60千米，用了4小时，回来时用了3小时，返回时平均每小时行多少千米？
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">60 * (4/3)</gadget>
<output>80</output>

<result>80</result>