A truck delivers vegetables from City A to City B. It travels 80km per hour. It takes (3/2) hours to arrive. It takes (4/3) hours for the return trip. How many kilometers does it travel per hour for the return trip?
一辆货车从甲城开往乙城送蔬菜，每小时行80km，行了(3/2)小时到达，返程时用了(4/3)小时，返程时每小时行多少千米？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(3/2) / (4/3)</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">80 * (9/8)</gadget>
<output>90</output>

<result>90</result>