A ship travels 120 kilometers from A to B in 3 hours and reaches B in 16 hours. How many kilometers are there between A and B?
一艘船从甲地开往乙地，3小时行了120千米，16小时就可到达乙地．甲乙两地相距多少千米？
<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">40 * 16</gadget>
<output>640</output>

<result>640</result>