A truck full of goods drove from Pengxi to Chengdu to deliver goods. The speed was 60 km/h, and it took 3 hours to reach the destination. rice?
一辆货车载满货物从蓬溪开往成都送货，去时的速度是60千米/时，3小时到达目的地，卸货后原路返回用了2小时，返回时平均每小时行多少千米？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">60 * (3/2)</gadget>
<output>90</output>

<result>90</result>